Free Online Tools
1202+ free tools for developers, writers & creators. No signup. No ads.
Developer Tools
View all →JSON Formatter
Format, validate, and beautify JSON. Minify or pretty-print with one click.
Base64 Decode
Decode Base64 strings to text. Encode text to Base64.
UUID Generator
Generate random UUIDs (v4) for unique identifiers. Copy with one click.
URL Encoder Decoder
Encode and decode URLs. Convert special characters for safe use in URLs.
Convert Color Hex to RGB
Convert hex color codes to RGB values (R, G, B).
Convert Color RGB to Hex
Convert RGB values (R, G, B) to hex color codes.
Hex to RGBA Converter
Convert hex color codes to RGBA (red, green, blue, alpha).
RGB to Hex Converter
Convert RGB values to hex color codes.
Hex to RGB Converter
Convert hex color codes to RGB values (R, G, B).
Color Picker
Pick a color with the native color picker and see its hex and RGB values.
Base64 Encoder Decoder
Encode text to Base64 or decode Base64 strings to text.
JSON Beautifier
Format and beautify JSON with pretty-print indentation.
JSON Validator
Validate JSON and see if it is valid or get the error message.
MD5 Generator
Generate MD5 hash of text. Client-side only, nothing is sent to any server.
Base64 Encode
Encode text or binary data to Base64.
URL Decoder
Decode URL-encoded strings (percent-encoding) to plain text.
URL Decoder Encoder
Encode or decode URL strings (percent-encoding). Toggle between encode and decode.
URL Encoder
Encode text to URL-safe format (percent-encoding).
QR Code Generator
Generate a QR code image from text or a URL. Paste content and see the QR code.
CSS Border Radius Generator
Generate CSS border-radius with 1 to 4 values (e.g. 8px) and see a live preview box.
CSS Box Shadow Generator
Create box-shadow CSS from offset X/Y, blur, spread, and color.
CSS Gradient Generator
Create linear-gradient CSS: set direction and 2+ color stops.
CSS Triangle Generator
Generate CSS for a triangle shape using borders. Pick direction and color.
Barcode Generator
Generate a barcode from text. Uses a simple SVG bar encoding (Code128-style) — client-side, no server.
CSV to JSON Converter
Paste CSV text and convert to JSON (array of objects). First row used as keys.
JSON to XML Converter
Paste JSON and convert to an XML string. Objects become elements, arrays repeat the key.
XML to JSON Converter
Paste XML string and convert to JSON. Uses browser DOMParser for parsing.
HTML Beautifier
Format and indent HTML so it is readable. Paste HTML string and get indented output.
HTML Encoder Decoder
Encode HTML: < to < etc. Decode HTML entities: < to <. Both directions in one tool.
HTML Formatter
Format and indent HTML for readability. Same as HTML beautifier: clean, indented output.
HTML Minifier
Minify HTML: remove extra whitespace and optionally comments to reduce size.
JavaScript Formatter
Format JavaScript code with consistent indentation for readability.
JavaScript Minifier
Minify JavaScript: remove comments and extra spaces to reduce file size.
JS Beautifier
Beautify JavaScript code: format and indent for readability. Same as JavaScript formatter.
JWT Encoder Decoder
Decode a JWT (base64url payload) and show header and payload. Optionally encode payload to JWT (client-side signing is limited).
Unix Timestamp
Show current Unix timestamp and convert between Unix time and human date (local or UTC).
SHA-256 Hash Generator
Generate SHA-256 hash from text (hex). SHA-256 is one-way; verify by comparing hashes.
SHA-512 Hash Generator
Generate SHA-512 hash from text (hex). SHA-512 is one-way; verify by comparing hashes.
SQL Formatter
Format and indent SQL with optional keyword uppercase for readability.
HTML Table Generator
Generate HTML table markup from rows and columns or paste CSV data.
QR Code Generator
Generate a QR code image from text or URL. Download as PNG.
Password Strength Checker
Check password strength: length, upper/lowercase, numbers, symbols, and get feedback.
QR Code Scanner
Upload or paste an image containing a QR code to decode and view the text or URL.
CSS Background Pattern Generator
Generate CSS for background patterns: dots, grid, and stripes. Customize size and colors.
CSS Beautifier
Format and indent CSS for readability. Paste minified CSS and get nicely formatted output.
CSS Checkbox Generator
Generate CSS for custom-styled checkboxes. Choose size, color, and border style.
CSS Clip-Path Generator
Generate clip-path CSS from shapes (polygon, circle, ellipse) or custom points.
CSS Cubic Bezier Generator
Create cubic-bezier() timing functions. Use presets or set two control points for animations.
CSS Glassmorphism Generator
Generate glassmorphism CSS with backdrop-filter blur, opacity, and border. Copy-ready code.
CSS Loader Generator
Generate CSS and HTML for loaders: spinner and dots. Copy and paste into your project.
CSS Minifier
Minify CSS: remove comments and extra spaces. Paste CSS and get a smaller output for production.
CSS Switch Generator
Generate CSS for a toggle switch. Customize size, colors, and rounded style.
Barcode Scanner
Decode QR codes from an image. Paste or upload an image to read the QR code content.
JSON Tree Viewer
View JSON as a collapsible tree. Paste JSON and expand or collapse nodes in the browser.
JSON Viewer
Format and view JSON in a readable way. Paste raw JSON and see formatted output with syntax-style display.
MD5 Hash Generator
Generate MD5 hash from text (hex). MD5 is one-way; verify by comparing hashes. No decrypt—use the verify option.
Online JSON Viewer & Beautifier
Beautify JSON and view it as formatted text or tree. Paste JSON and switch between formatted and tree view.
SHA-1 Hash Generator
Generate SHA-1 hash from text (hex). SHA-1 is one-way; verify by comparing hashes.
SHA-224 Hash Generator
Generate SHA-224 hash from text (hex). SHA-224 is one-way; verify by comparing hashes.
SHA-384 Hash Generator
Generate SHA-384 hash from text (hex). SHA-384 is one-way; verify by comparing hashes.
Base64 to Image Converter
Paste a base64 data URL string to preview the image and download it as a file.
Pixel Ruler
Measure width and height in pixels. Enter dimensions or use the display to check sizes on screen.
XML Beautifier
Format and indent XML for readability. Paste minified XML and get nicely structured output.
Alarm Clock
Set a time (HH:MM) for a countdown to alarm or "ring at" display. Optional Web Audio beep or visual only.
Calendar Tool
Show a month calendar for any year and month. View dates at a glance.
Click Counter
Count button clicks. Click to increment, reset to start over.
Click Test
Click in the area to test clicks. Shows click count or reaction time.
Clock Tool
Display current time updating every second. Simple digital clock.
Current Time
Show current time and optional timezone. Local time or select a timezone.
Mic Test
Test your microphone. Start mic and see a level meter or 'Mic detected' using getUserMedia and AnalyserNode.
Notepad Tool
Plain textarea with save to localStorage and clear. Quick notes in the browser.
Notepad Help
Static help text and short instructions for using a notepad or notes tool.
Ruler CM
On-screen ruler in centimeters. Visual ruler with cm marks for quick measurement reference.
Ruler Inch
On-screen ruler in inches. Visual ruler with inch marks for quick measurement reference.
Timer Tool
Countdown timer. Set minutes and seconds, start, stop, and get a beep at zero.
Today's Date
Display today's date in local format. Optional format selection.
Todo List
Simple todo list: add items, list them, check off, and delete. Stored in localStorage.
Voice Recorder
Record audio with MediaRecorder, play back, and download. All client-side, no server upload.
Webcam Test
Show video from getUserMedia (camera). Optional capture snapshot.
React Native Shadow Generator
Generate React Native shadow style objects from shadow parameters (iOS shadowColor/Radius/Opacity, Android elevation).
CSS Color Picker & Keywords
Display CSS color keywords and hex/RGB picker; show a swatch and the CSS code.
CSS Navigation Bar Generator
Generate HTML and CSS for a simple horizontal navigation bar.
Code to Image Converter
Paste code and get a styled code image (formatted in a box with copy; export as image when supported).
Google Fonts Pair Finder
Browse popular Google Fonts pairs for headings and body text; copy font names and link snippets.
IDN Punycode Converter
Convert between internationalized domain names (IDN) and Punycode (ASCII) encoding.
Bar Graph Maker
Create a simple bar chart from labels and values. Enter data and view the chart (canvas or CSS).
Battery Status
Display device battery level and charging state using the Battery API (navigator.getBattery) when available.
Call Recorder
Record audio from your microphone using the MediaRecorder API. Placeholder UI; shows a message if recording is unsupported.
Camera Tool
Access your device camera and show a live video preview using getUserMedia.
Simple Text Editor
A simple plain-text editor (textarea) for quick notes or paste-in content. No rich formatting.
Flashlight Tool
Turn your screen into a flashlight: fullscreen white (or bright) display by toggling body background. Useful in the dark.
Grocery List
Add and remove grocery list items. List is persisted in your browser's localStorage.
Line Graph Maker
Create a simple line chart from labels and values. Enter data and view the chart.
Mirror Tool
Show a mirrored live camera feed using getUserMedia. Useful as a mirror or for self-view.
Scatter Plot Maker
Create a simple scatter plot from X,Y pairs. Enter one pair per line and view the chart.
Scoreboard Tool
Two-team scoreboard: increment or decrement each team's score. Optional reset to start over.
Screen Recorder
Record your screen in the browser. Use getDisplayMedia to capture screen or tab, then start/stop recording and download as WebM.
Screenshot
Capture the current tab or window as a PNG in your browser. Uses getDisplayMedia to capture, then download. Fallback: use your OS or browser screenshot shortcuts.
Screenshot on Android
How to take a screenshot on Android: shortcuts and steps for most devices (Power + Volume Down, palm swipe, and manufacturer-specific methods).
Screenshot on iPhone
How to take a screenshot on iPhone and iPad: side button + volume, or AssistiveTouch. Where to find and share screenshots.
Screenshot on Mac
How to take a screenshot on Mac: Cmd+Shift+3 (full screen), Cmd+Shift+4 (selection or window), and Cmd+Shift+5 for options and recording.
Screenshot on Windows
How to take a screenshot on Windows: Win+Shift+S (Snipping Tool), Print Screen, and Game Bar. Save or copy to clipboard.
Tone Generator
Generate a pure tone in the browser with the Web Audio API. Set frequency (Hz), duration (seconds), and waveform (sine, square, sawtooth, triangle). Play and download as WAV.
CSS Formatter
Format and beautify CSS. Add indentation and line breaks for readable stylesheets.
Minify CSS
Minify CSS: remove comments and extra whitespace. Compress stylesheets for production.
Mulch Planning Guide
Estimate mulch needed for your beds. Enter area and depth to get cubic yards and buying tips.
CSV to XML Converter
Convert CSV to XML online. Paste comma or tab-separated data and get well-formed XML.
Excel to CSV Converter
Convert Excel table data to CSV. Paste data copied from Excel (tab or comma separated) and get clean CSV.
Excel to XML Converter
Convert Excel table data to XML. Paste data copied from Excel and get well-formed XML.
Split CSV
Split a CSV file into multiple parts by rows or by number of lines. Paste CSV and get chunks.
XML to CSV Converter
Convert XML to CSV online. Paste XML and get comma-separated values. Great for spreadsheets.
HTML Viewer
Preview HTML in the browser. Paste HTML and see how it renders in a sandboxed iframe.
Minify HTML
Minify HTML: remove extra whitespace and optional comments. Compress markup for faster loading.
Minify JavaScript
Minify JavaScript: remove comments and extra whitespace. Basic compression for smaller JS files.
Minify JSON
Minify JSON: remove whitespace and newlines. Validate and compress JSON in one step.
Online PHP Formatter
Format and beautify PHP code. Add indentation and line breaks for readable PHP.
Password Encryption Utility
Hash a password with SHA-256 in the browser. One-way hash for non-critical use; use bcrypt on server for storage.
PHP Beautifier
Beautify PHP code with consistent indentation and line breaks. Clean up messy PHP.
URL Slug Generator
Generate URL-friendly slugs from titles or text. Lowercase, hyphenated, no special characters.
JavaScript Redirect
Generate JavaScript redirect code. Enter URL and optional delay to get window.location or meta refresh snippet.
PHP Redirect
Generate PHP redirect code. Enter a URL and get header('Location: ...') or 301/302 snippet for server-side redirect.
HTML Codes
Reference and copy common HTML character entities. Find entity names and numbers for symbols and special characters.
HTML Code Check
Check HTML for unclosed or mismatched tags. Basic validation of tag structure.
HTML Code Quote
Escape HTML special characters so text is safe to display. Converts <, >, &, and quotes to entities.
HTML Code
Quick reference for HTML tags and common snippets. Copy link, image, div, and other boilerplate.
HTML Code Copyright
Get the copyright symbol (©) and its HTML entity. Copy © or © for footers and credits.
HTML Code Euro
Get the HTML entity and character codes for the Euro symbol (€). Copy for use in HTML, XML, or web content.
HTML Code Heart
Get the HTML entity and character codes for the heart symbol (♥). Copy for use in HTML, XML, or web content.
HTML Code Space
Get the HTML entity and character codes for non-breaking space and regular space. Copy for HTML, XML, or web content.
HTML Code TM (Trademark)
Get the HTML entity and character codes for the trademark symbol (™). Copy for use in HTML, XML, or web content.
HTML Comment
Wrap or unwrap text as HTML comments. Generate comment blocks and strip comments from HTML—client-side only.
HTML Link
Generate HTML anchor (link) code. Enter URL and link text to get ready-to-copy <a href="..."> markup.
HTML Link New Window
Generate HTML link code that opens in a new tab or window. Uses target="_blank" with rel="noopener noreferrer" for security.
Mailto Link Generator
Generate mailto: links for email addresses. Add optional subject, body, and CC/BCC—copy the HTML or plain URL.
JavaScript Link
Generate HTML links that run JavaScript on click (e.g. javascript: or onclick). Use for in-page actions—copy the snippet.
HTML Editor
Edit HTML and see a live preview in the browser. No server—runs entirely in your browser. Useful for snippets and quick tests.
HTML Link Code
Reference and copy common HTML link code: anchor, new window, mailto, and button-style links. Quick snippets for developers.
SVG Viewer & Editor
Paste SVG code and see a live preview. Edit the markup and watch the graphic update—all in the browser, no upload.
CSV Tool
Convert CSV to JSON, or format and validate CSV. Comma-separated values parser.
URL Tool
Parse and display URL parts: protocol, host, pathname, search params. URL structure inspector.
XML Tool
Format and pretty-print XML. Validate XML structure. Minify or indent.
Notes Tool
Simple online notepad. Type notes in the browser. No account required.
HTML Anchor Link
Generate HTML anchor tag code. Create <a href="...">link text</a> from URL and text.
HTML Button Link
Generate HTML for a link styled as a button. <a> with button look or <button> that navigates.
HTML Download Link
Generate HTML for a download link. <a download href="..."> to trigger file download.
HTML Image Link
Generate HTML for an image or image link. <img src="..." alt="..." /> or <a><img /></a>.
Text Tools
View all →Word Counter
Count words, characters, sentences, and paragraphs. Perfect for writers and students.
Case Converter
Convert text between uppercase, lowercase, title case, and sentence case instantly.
Morse Code Translator
Translate text to Morse code and Morse code to text. Supports letters, numbers, and punctuation.
Lorem Ipsum Generator
Generate placeholder text for designs and mockups. Choose paragraphs, sentences, or words.
Diff Checker
Compare two texts side by side. Highlight differences between documents, code, or strings.
Character Counter
Count characters with and without spaces. Real-time counts for tweets, meta descriptions, and forms.
Text Character Counter
Count characters in text with and without spaces. Instant character count for any text.
Text Word Counter
Count words, characters, sentences, and paragraphs. Ideal for essays and copy.
Uppercase to Lowercase Converter
Convert text from uppercase to lowercase (or toggle case). Copy result with one click.
Add Random Words to Text
Insert N random words at random positions in your text. Uses a small word list for testing or obfuscation.
Convert Text to Lowercase
Convert any text to lowercase instantly. Handles Unicode and preserves structure.
Convert Text to Title Case
Convert text to Title Case — capitalize the first letter of each word. Simple and instant.
Convert Text to Uppercase
Convert any text to uppercase instantly. Handles Unicode and preserves structure.
HTML Decode Text
Decode HTML entities in text (e.g. < → <, & → &, " → "). Safe and instant.
HTML Encode Text
Encode text for safe use in HTML (e.g. < → <, & → &, " → "). Prevents XSS and display issues.
Readability Checker
Check text readability: average words per sentence, syllable estimate, and a Flesch-like score or grade level.
Remove Duplicate Text Lines
Remove duplicate lines from text. Keep first occurrence order or sort lines alphabetically.
Remove Duplicate Text Words
Remove duplicate words from text. Words are split by spaces; first occurrence is kept.
Remove Extra Spaces from Text
Collapse multiple spaces to one and trim leading/trailing whitespace. Clean up pasted or messy text.
Reverse Text
Reverse the character order of text (e.g. hello → olleh). Handles Unicode safely.
Reverse Text Generator
Reverse the character order of text (e.g. hello → olleh). Same as reverse text — instant and Unicode-safe.
Sort Text Lines
Sort lines of text alphabetically — ascending or descending. One line per item.
Text Compare
Compare two text inputs side-by-side. Highlights added and removed lines (diff) in a unified view.
URL Decode Text
Decode percent-encoded (URL-encoded) text. Uses decodeURIComponent so %20 → space, %2F → /, etc.
URL Encode Text
Encode text for safe use in URLs. Uses encodeURIComponent so spaces and special characters become %XX.
Binary to Text Tool
Paste a binary string (0s and 1s) and decode to text. UTF-8 or ASCII. Client-side only.
Binary to Text Translator
Translate binary string (0s and 1s) to readable text. Decode binary to UTF-8/ASCII. Client-side only.
Bionic Reading Converter
Convert text to bionic reading style: bold the first 1–2 letters of each word for faster reading.
Convert Binary to Text
Convert a binary string (0 and 1) to text. Decode binary to UTF-8. Client-side only.
Convert Text to Binary
Convert text to binary (0 and 1). Each character becomes 8 bits. Client-side only.
Notepad Online
Simple online notepad: plain text area with optional save as file and copy. No rich editor.
Online Text Editor
Simple textarea with clear and copy. Plain text only—no rich editor. Client-side.
ROT13 Decoder Encoder
ROT13 encode or decode text. Same operation for both—rotate letters by 13 positions. A↔N, B↔O.
ROT13 Text
Apply ROT13 transform to text. Encode and decode are the same: rotate letters by 13.
Text to Binary Converter
Convert text to binary (0 and 1). Each character encoded as 8 bits. Client-side only.
Text to Binary Translator
Translate text to binary (0 and 1). UTF-8 bytes to 8-bit strings. Client-side only.
ASCII to Text Converter
Convert comma- or space-separated decimal ASCII codes to text. Example: 72, 105 → Hi.
Text to ASCII Converter
Convert text to ASCII decimal codes. Each character becomes its decimal code (e.g. H → 72).
Active to Passive Voice Converter
Convert active voice sentences to passive voice. Simple rule-of-thumb: object becomes subject, subject moves after 'by', verb becomes 'be' + past participle.
Add Curse Words to Text
Insert placeholder curse words (e.g. asterisk blocks) into text at chosen positions. Use for testing filters, placeholders, or censoring previews.
Add Errors to Text
Insert simple typos into text: duplicate a letter, swap two adjacent letters, or drop a letter. Use for testing spell-checkers or generating noisy data.
Add Line Breaks to Text
Insert line breaks into text: replace spaces with newlines, add a break every N characters, or double line breaks between paragraphs.
Add Line Numbers
Add line numbers to text. Each line is prefixed with its number (1, 2, 3...) with configurable separator and padding.
Add Prefix to Words
Add a prefix to each word in the text. Choose the prefix and optional separator. Useful for lists, tags, or bulk formatting.
Add Quotes to Lines
Wrap each line of text in quotes. Choose single or double quotes. Useful for SQL, CSV, or code where each line must be a quoted string.
Add Quotes to Text
Wrap the entire text block in quotes (single or double). Useful for copying text as a string literal or for citations.
Add Quotes to Words
Wrap each word in the text with quotes (single or double). Words are split by spaces. Useful for lists of quoted tokens or SQL/code.
Add Random Letters to Words
Insert random letters into each word (e.g. at the end or after each character). Use for placeholder text, obfuscation, or testing.
Add Strikethrough to Text
Wrap selected text or each word in strikethrough: HTML <s> tag or Markdown ~~syntax~~. Copy the result for web or docs.
Add Suffix to Words
Add a suffix to each word in the text. Choose the suffix (e.g. comma, period, .txt). Useful for lists, file names, or bulk formatting.
Add Symbols Around Letters
Wrap each letter (or character) with symbols, e.g. (a) or *b* or [c]. Useful for styling, placeholders, or obfuscation.
Add Symbols Around Words
Wrap each word in the text with symbols, e.g. *word* or [word] or (word). Useful for Markdown emphasis, placeholders, or lists.
Add Text Prefix
Add a prefix to the beginning of your text. One string at the start of the entire block. Useful for bullets, numbering, or code comments.
Add Text Suffix
Add a suffix to the end of your text. One string at the end of the entire block. Useful for punctuation, file extensions, or labels.
Add Underline to Text
Wrap text in underline: HTML <u> tag or double underscore __syntax__. Copy for web or Markdown.
Anonymize Text
Replace words or segments with asterisks (***) or a short hash to anonymize sensitive text. Client-side only.
Calculate Letter Sum
Sum the character codes (e.g. A=65, a=97) of every letter in text. Useful for checksums or simple hashing.
Calculate Text Complexity
Estimate text complexity using word length and a simple syllable-style metric. No external API; client-side only.
Calculate Text Entropy
Compute character-frequency entropy (Shannon entropy) of text. Higher entropy often means more random or diverse characters.
Censor Words in Text
Replace a list of words or phrases with *** (or custom replacement) in your text. Client-side; your text never leaves the browser.
Center Text
Pad each line so text is centered to a given width. Useful for ASCII art, captions, or fixed-width layouts.
Change Text Alphabet
Transform text using character mapping: ROT13, reverse alphabet (A↔Z), or custom substitution. Client-side only.
Change Text Case
Convert text to UPPERCASE, lowercase, or Title Case. Handles multiple lines and preserves structure.
Change Text Font
Display your text in different font families (serif, sans-serif, monospace, etc.). Copy the same text; only the visual font changes.
Check If Text Is Fake
Simple client-side heuristics to flag text that might be auto-generated, gibberish, or low-quality. No API; not a substitute for human judgment.
Check Text Palindrome
Check if text is a palindrome (reads the same forward and backward). Ignores spaces, punctuation, and case by default.
Code Text Alt Codes
Show Windows Alt+number codes for each character in your text. Useful for typing special characters via numeric keypad.
Code Text Editor
A simple monospace text area for editing code or plain text. Copy and paste with ease; no syntax highlighting.
Convert Base64 to Text
Decode Base64-encoded string to plain text. Handles standard Base64; invalid input shows an error. Client-side only.
Convert Column to Comma
Convert column-based or line-separated text into comma-separated values (CSV-style). One line per row or custom delimiter in, comma out.
Convert Comma to Column
Convert comma-separated values into column format: one value per line (or tab-separated). Simple CSV to list.
Convert Comma to Newline
Replace commas with newlines so comma-separated text becomes one item per line. Simple and client-side.
Convert Commas to Spaces
Replace all commas in text with spaces. Quick way to turn comma-separated lists into space-separated or clean up spacing.
Convert Decimal to Text
Decode a sequence of decimal character codes (e.g. 72 101 108 108 111) into text. Space or comma separated numbers.
Convert Digits to Letters
Replace digits 0–9 with letters (e.g. 0→A, 1→B, … 9→J or custom mapping). Useful for puzzles or simple substitution.
Convert Hexadecimal to Text
Decode hexadecimal string to text. Handles hex pairs (e.g. 48656C6C6F = Hello). Spaces and 0x prefix are optional.
Convert Letters to Digits
Replace letters A–J (or A–Z) with digits 0–9. A=0, B=1, … J=9, or full alphabet mapping. For puzzles or simple encoding.
Convert Morse to Text
Decode Morse code (dots and dashes) to plain text. Use space between letters and / or similar between words. Client-side only.
Convert Newline to Comma
Replace newlines with commas so each line becomes one value in a comma-separated list. Simple list to CSV-style.
Convert Newlines to Spaces
Replace all newlines (line breaks) with spaces. Turn multiline text into a single line or normalize line breaks to spaces.
Convert Nice Columns to Text
Convert aligned column text (fixed-width by delimiter) back to plain text. Splits by delimiter and trims columns. Client-side only.
Convert Octal to Text
Decode octal (base-8) codes to plain text. Enter space- or comma-separated octal numbers (e.g. 110 145 154). Client-side only.
Convert Spaces to Commas
Replace spaces (or multiple spaces) in text with commas. Useful for turning space-separated lists into CSV-style comma-separated values. Client-side only.
Convert Spaces to Newlines
Replace spaces (or multiple spaces) in text with line breaks. Turn a single line into multiple lines, one word or segment per line. Client-side only.
Convert Spaces to Tabs
Replace spaces (or runs of spaces) in text with tab characters. Useful for aligning to tab stops or converting space-indented code to tabs. Client-side only.
Convert Tabs to Spaces
Replace tab characters with spaces. Choose how many spaces per tab (e.g. 2 or 4) for consistent indentation. Client-side only.
Convert Text to Base64
Encode plain text to Base64. Handles UTF-8; output is standard Base64 string. Client-side only.
Convert Text to Decimal
Encode text to decimal (base-10) byte values. Each character becomes one or more space-separated numbers (0–255). Client-side only.
Convert Text to Hexadecimal
Encode text to hexadecimal (hex). Each character becomes UTF-8 bytes in hex (e.g. Hello → 48656c6c6f). Client-side only.
Convert Text to Morse Code
Encode text to Morse code (dots and dashes). Letters, numbers, and common punctuation supported. Words separated by / ; letters by space. Client-side only.
Convert Text to Nice Columns
Align text into fixed-width columns by a delimiter. Pads cells so columns line up vertically. Client-side only.
Convert Text to Octal
Encode text to octal (base-8) byte values. Each character becomes one or more space-separated octal numbers (e.g. Hello → 110 145 154 154 157). Client-side only.
Convert Text to Proper Case
Convert text to Title Case: first letter of each word uppercase, rest lowercase. Handles multiple words and punctuation. Client-side only.
Convert Text to URL Slug
Convert text to a URL-friendly slug: lowercase, spaces to hyphens, remove special characters. Ideal for URLs and filenames. Client-side only.
Count Text Lines
Count the number of lines in text. Supports empty lines, trailing newline, and different line endings (CRLF, LF, CR). Client-side only.
Count Words in Text
Count the number of words in text. Words are split by whitespace; punctuation attached to letters is kept with the word. Client-side only.
Create Text Palindrome
Create a palindrome from text: append the reversed text (optionally without duplicating the middle character). Reads the same forward and backward. Client-side only.
Create Zigzag Text
Arrange text in a zigzag (diagonal) pattern across multiple lines. Choose the number of rows; characters are placed in a sawtooth path. Client-side only.
CSS Text Glitch Effect Generator
Generate a CSS snippet for a text glitch effect. Enter your text and get HTML + CSS you can copy. Client-side only.
Decrement Text Letters
Replace each letter with the previous letter in the alphabet (A→Z, B→A, a→z, b→a). Non-letters are unchanged. Client-side only.
Draw Box Around Text
Draw an ASCII (or Unicode) box around text. Frames each line with a border. Choose box style: single, double, or rounded. Client-side only.
Duplicate Sentences in Text
Repeat each sentence in the text. Sentences are split by period, exclamation, or question mark; each is output twice (or a chosen number of times). Client-side only.
Duplicate Text Consonants
Repeat each consonant in the text; vowels and non-letters stay as-is. Useful for emphasis or word games. Client-side only.
Duplicate Text Letters
Repeat each letter in the text. Every character (or only letters) is output 2 or more times in a row. Client-side only.
Duplicate Text Vowels
Repeat each vowel in the text; consonants and non-letters stay as-is. Useful for emphasis or word games. Client-side only.
Duplicate Words in Text
Repeat each word in the text. Words are split by whitespace; each word is output 2 or more times in a row. Client-side only.
Erase Letters from Words
Remove specific letters or patterns from each word in your text. Enter letters to remove (e.g. a,e,i) or a regex pattern. Client-side only.
Erase Words from Text
Remove specific words from your text. Enter words to remove (one per line or comma-separated). Case-sensitive or case-insensitive. Client-side only.
Escape Text
Escape text for HTML or JSON. Converts special characters (e.g. <, >, &, quotes) so the text is safe to embed in HTML or JSON strings. Client-side only.
Extract Regex Matches from Text
Find and list all matches of a regular expression in your text. Enter a regex pattern and get each match (or capture groups) listed. Client-side only.
Extract Text Fragment
Extract a substring from text by start position and length (or end position). Useful for snipping a fixed-length fragment from long text. Client-side only.
Extract Text from BBCode
Strip BBCode tags (e.g. [b], [url=...]) from text and get plain text only. Keeps the visible content, removes markup. Client-side only.
Extract Text from HTML
Strip HTML tags and get plain text only. Removes all markup (e.g. <div>, <script>) and decodes entities so you get readable text. Client-side only.
Extract Text from JSON
Parse JSON and extract all string values (or a specific path) as plain text. Useful to get human-readable content from API responses or config. Client-side only.
Extract Text from XML
Strip XML tags and get plain text only. Removes all elements and attributes, keeps only the text content. Handles common entities. Client-side only.
Fancify Line Breaks in Text
Replace plain line breaks with decorative separators (e.g. ✦ — ✦, ***, or custom). Makes blocks of text visually distinct. Client-side only.
Filter Paragraphs
Keep or remove paragraphs that match a keyword or pattern. Filter by include (only show matching) or exclude (hide matching). Client-side only.
Filter Sentences
Keep or remove sentences that match a keyword or pattern. Filter by include (only matching sentences) or exclude (hide matching). Client-side only.
Filter Text
Include or exclude lines (or the whole text) that match a keyword or regex. Keep only matching lines or remove them. Client-side only.
Filter Words
Keep or remove words that match a keyword or pattern. Include only matching words in the output or exclude them. Client-side only.
Find Duplicate Text Letters
List letters that appear more than once in your text. Shows each duplicate letter and optionally how many times it occurs. Client-side only.
Find Duplicate Text Words
List words that appear more than once in your text. Shows each duplicate word and how many times it occurs. Client-side only.
Find Text Length
Count characters and words in text. Displays total characters (with and without spaces), word count, and line count. Client-side only.
Find Top Letters
Show letter frequency: which letters appear most often in your text. Sorted by count (highest first). Client-side only.
Find Top Words
Show word frequency: which words appear most often in your text. Sorted by count (highest first). Client-side only.
Find Unique Text Letters
List all distinct letters that appear in your text (each letter once). Optionally sorted alphabetically or by first occurrence. Client-side only.
Find Unique Text Words
List all distinct words that appear in your text (each word once). Optionally sorted alphabetically or by first occurrence. Client-side only.
Fix Paragraph Distance
Normalize spacing between paragraphs. Reduce multiple blank lines to one (or a set number), or ensure exactly one blank line between paragraphs. Client-side only.
Flip Text Vertically
Reverse the order of lines in your text. The first line becomes the last and vice versa. Useful for logs or lists. Client-side only.
Generate Fake Text
Generate placeholder or lorem-style text. Choose word count or paragraph count. Useful for mockups and layout testing. Client-side only.
Generate Text Bigrams
Extract bigrams (pairs of adjacent words) from your text. Lists each two-word phrase in order. Useful for n-gram analysis and SEO. Client-side only.
Generate Text from Regex
Generate sample text that matches a simple regex pattern. Enter a pattern (e.g. [a-z]+ or \d{3}) and get example matches. Client-side only.
Generate Text N-grams
Extract word or character n-grams from text. Choose n (e.g. 2 for bigrams, 3 for trigrams) and get overlapping sequences. Client-side only.
Generate Text of Certain Length
Truncate or pad text to a target character length. Add filler (spaces or custom) to reach the length, or cut to fit. Client-side only.
Generate Text Skip-grams
Extract skip-grams from text: pairs (or n-tuples) of items with optional gaps (e.g. word 1 and word 3). Word or character based. Client-side only.
Generate Text Unigrams
Extract unigrams (single words or characters) from text. One token per line—useful for word lists, character frequency, or tokenization. Client-side only.
Generate Tiny Text
Convert text to tiny Unicode characters: small caps, superscript, subscript. Copy-paste for social media or captions. Client-side only.
Generate Zalgo Text
Add combining Unicode characters above and below letters to create glitchy Zalgo-style text. Intensity adjustable. Client-side only.
Highlight Letters in Text
Wrap specified letters or characters in HTML <mark> tags (or another tag) to highlight them. Enter letters to highlight and paste your text. Client-side only.
Highlight Patterns in Text
Highlight literal text patterns (phrases or words) by wrapping matches in HTML <mark>. Enter one pattern per line. Client-side only.
Highlight Regexp Matches in Text
Wrap all regex matches in HTML <mark> tags. Enter a JavaScript regex pattern; every match is highlighted. Client-side only.
Highlight Sentences in Text
Wrap specified sentences (by index or by matching text) in HTML <mark>. Split on sentence boundaries, then highlight chosen ones. Client-side only.
Highlight Words in Text
Wrap specified words in HTML <mark>. Enter words to highlight (one per line or comma-separated); matches are whole-word by default. Client-side only.
Text Image Generator
Render text as an image using the browser canvas. Choose font size, color, and background; download as PNG. Client-side only, no server.
Increase Text Spacing
Add spaces (or another character) between every character in text. Useful for emphasis, readability, or formatting. Client-side only.
Increment Text Letters
Shift each letter to the next (or previous) letter in the alphabet. A→B, B→C, or reverse. Non-letters unchanged. Client-side only.
Indent Text
Add a prefix (spaces, tabs, or custom string) to each line of text. Optionally indent only non-empty lines. Client-side only.
Insert Symbols Between Letters
Insert a character or string between every letter (e.g. a.b.c or a-b-c). Optionally between words. Client-side only.
Invert Text Case
Swap uppercase and lowercase: uppercase becomes lower, lowercase becomes upper. Numbers and symbols unchanged. Client-side only.
Invisible Character
Copy zero-width and other invisible Unicode characters. Show names and code points; paste into names, games, or social. Client-side only.
Join Text
Concatenate lines (or paragraphs) with a delimiter. Paste multiple lines and join them with a comma, newline, or any custom separator. Client-side only.
JSON Parse Text
Parse JSON text and pretty-print (format) it with indentation. Validates and shows parse errors. Client-side only.
JSON Stringify Text
Convert text or a value into a JSON string (escaped). Useful for embedding in JSON or code. Client-side only.
Justify Text
Pad lines to a target width by adding spaces between words (justify). Each line (except possibly the last) becomes the same length. Client-side only.
Left Align Text
Pad each line to a target width by adding spaces at the end (left-align). Lines become the same length with text on the left. Client-side only.
Left Pad Text
Pad text on the left to reach a target length. Add spaces or a custom character at the start. Each line or whole text. Client-side only.
Letter Counter
Count letters (alphabetic characters) in text. Optionally count only A–Z or include accented letters. Excludes digits and symbols. Client-side only.
Line Counter
Count the number of lines in text. Empty lines count as lines. Optionally show non-empty line count. Client-side only.
Lorem Ipsum Generator
Generate placeholder text: N words or N paragraphs of lorem ipsum. No server; runs in your browser.
Multiple Whitespace Remover
Collapse multiple spaces, tabs, and newlines into a single space. Clean up pasted or messy text instantly.
Normalize Line Breaks in Text
Convert CRLF (Windows) and CR (old Mac) line endings to LF (Unix). Fix mixed line endings in one click.
Normalize Text Spacing
Trim leading and trailing whitespace and collapse runs of spaces (and tabs) to a single space. Preserve line breaks.
Photo Censor
Upload an image and blur or block out a region with a rectangle. Client-side only; your image never leaves the browser.
Print Text Statistics
Show character count, word count, line count, and optional character frequency. All computed in your browser.
Printf-Style Text (sprintf)
Build text from a format string with placeholders (%s, %d, etc.) and form fields. Simple sprintf-style substitution, client-side.
Randomize Letters in Text
Shuffle the letters inside each word (or in the whole text). Keeps word boundaries or scrambles everything. Client-side.
Randomize Line Breaks in Text
Insert random line breaks into text so it wraps at random positions. Useful for poetry or visual effect. Client-side.
Randomize Text Case
Randomly set each letter to uppercase or lowercase. Create RaNdOm CaSe or similar effects. Client-side.
Randomize Text Lines
Shuffle the order of lines in your text. Each line stays intact; only the order changes. Client-side.
Randomize Text Paragraphs
Shuffle the order of paragraphs (blocks of text separated by blank lines). Client-side.
Randomize Text Sentences
Shuffle the order of sentences in your text. Sentences are split by period, exclamation, or question mark. Client-side.
Randomize Text Spacing
Insert random spaces between words or characters. Stretch or scatter text with variable spacing. Client-side.
Randomize Words in Text
Shuffle the order of words in your text. Each word stays intact; only the order changes. Client-side.
Regexp Test Text
Test a regular expression against text. See if it matches, and view capture groups. JavaScript regex flavor, client-side.
Remove All Whitespace from Text
Strip every space, tab, and newline from your text. Result is one continuous string. Client-side.
Remove Empty Text Lines
Delete all blank lines from your text. Keep only lines that contain at least one non-whitespace character. Client-side.
Remove Line Breaks from Text
Join all lines into one. Replace every newline (and optional spaces around it) with a single space or nothing. Client-side.
Remove Line Numbers
Strip leading line numbers (e.g. 1. or 1) or number-dot patterns from each line. Clean pasted code or lists. Client-side.
Remove Prefix from Words
Strip a given prefix from the start of every word (or line). Example: remove "re" from "rewrite" → "write". Client-side.
Remove Quotes from Lines
Strip leading and trailing double or single quotes from each line. Clean CSV-style or list data. Client-side.
Remove Quotes from Text
Strip all double and single quote characters from your text. Removes every " and '. Client-side.
Remove Quotes from Words
Strip leading and trailing double or single quotes from each word (whitespace-separated). Leaves quotes in the middle of words. Client-side.
Remove Random Letters from Words
Randomly delete a chosen number of letters from each word. Creates typo-like or abbreviated text. Client-side.
Remove Random Symbols from Text
Randomly delete a chosen number of non-letter, non-digit characters (symbols/punctuation) from your text. Client-side.
Remove Sentences from Text
Drop sentences by keyword match or by index (e.g. 1,3,5). Client-side.
Remove Suffix from Words
Strip a given suffix from the end of every word. Example: remove "ing" from "running" → "runn". Client-side.
Remove Symbols from Around Words
Strip non-letter characters from before and after each word. Keeps only letter sequences with spaces between. Client-side.
Remove Consonants from Text
Delete all consonant letters (keep vowels, digits, spaces, punctuation). Client-side.
Remove Diacritics from Text
Strip accents and diacritical marks (NFD normalize then remove combining marks). café → cafe, naïve → naive. Client-side.
Remove Text Font / Style
Strip HTML tags and optionally normalize Unicode style characters (e.g. mathematical bold, script) to plain A–Z. Client-side.
Remove Letters from Text
Delete all letter characters (A–Z, a–z). Keep digits, spaces, punctuation, and symbols. Client-side.
Remove Prefix from Text
Strip a given prefix from the start of the whole text once. Example: remove "Re: " from "Re: Hello" → "Hello". Client-side.
Remove Punctuation from Text
Strip punctuation marks: periods, commas, exclamation, question marks, quotes, colons, semicolons, etc. Client-side.
Remove Suffix from Text
Strip a given suffix from the end of the whole text once. Example: remove " - signature" from "Hello - signature" → "Hello". Client-side.
Remove Vowels from Text
Delete all vowel letters (A, E, I, O, U). Keep consonants, digits, spaces, punctuation. Client-side.
Remove Words from Text
Remove specific words from text by providing a list (one per line or comma-separated). Whole-word match. Client-side.
Repeat Text
Repeat a block of text N times with an optional separator between copies. Client-side.
Replace Commas in Text
Replace every comma with another character (e.g. space, semicolon, tab). Client-side.
Replace Digits with Words
Convert digits to words: 1→one, 2→two, 0→zero, etc. Client-side.
Replace Line Breaks in Text
Replace every newline (and CRLF) with another character: space, comma, <br>, or custom string. Client-side.
Find and Replace Text
Find and replace in text: literal string or regex pattern. Option for global replace (all matches). Client-side.
Replace Consonants in Text
Replace every consonant letter with a character (e.g. space, asterisk, or another letter). Client-side.
Replace Letters in Text
Replace every letter (A–Z, a–z) with a character. Keep digits, spaces, punctuation. Client-side.
Replace Spaces in Text
Replace every space (and optionally tabs/newlines) with another character. Client-side.
Replace Vowels in Text
Replace every vowel (A, E, I, O, U) with a character. Client-side.
Replace Words in Text
Find and replace whole words. One or more word→replacement pairs (e.g. cat→dog). Client-side.
Replace Words with Digits
Convert number words to digits: one→1, two→2, zero→0, etc. Client-side.
Reverse Paragraphs
Reverse the order of paragraphs. Paragraphs are split by blank lines (double newline). Client-side.
Reverse Sentences
Reverse the order of sentences. Sentences are split by . ! ? followed by space or end. Client-side.
Reverse Words in Text
Reverse the order of words. Words are split by whitespace; line breaks are preserved as spaces in output. Client-side.
Rewrite Text
Rewrite text using simple rules or synonym-style replacement. Client-side placeholder for synonym replacement.
Right Align Text
Right-align text by padding each line with spaces on the left to a given width. Client-side.
Right Pad Text
Pad text on the right to a target length using a pad character (default space). Client-side.
ROT47 Text
Encode or decode text with ROT47: rotate printable ASCII characters 33–126 by 47 positions. Client-side.
Rotate Text Lines
Rotate lines: move first line to last, or reverse the order of all lines. Client-side.
Scramble Words
Shuffle the letters inside each word while keeping word boundaries. Client-side.
Slice Text
Extract a substring by start index and length. Client-side.
Small Text Generator
Convert text to Unicode small caps, superscript, or subscript characters. Client-side.
Sort Letters in Words
Alphabetize the letters inside each word. Word order and boundaries stay the same. Client-side.
Sort Paragraphs in Text
Sort paragraphs alphabetically or by length. Blank lines separate paragraphs. Client-side.
Sort Sentences in Text
Sort sentences alphabetically or by length. Sentences split by . ! ? Client-side.
Sort Symbols in Text
Group and reorder symbols in text: sort non-letter characters or group by type. Client-side.
Sort Words in Text
Sort words alphabetically or by length. One word per line or space-separated. Client-side.
Split Text
Split text by a delimiter and show each part on its own line. Client-side.
Swap Letters in Words
Swap pairs of letters within each word (e.g. first with second, third with fourth). Client-side.
Swap Words in Text
Swap adjacent words or swap two words by index. Client-side.
Text Repeater
Repeat text N times with an optional separator between each copy. Client-side.
Text to Handwriting Converter
Display text in a cursive, handwriting-style font (CSS). Client-side only, no image generation.
Text Line Counter
Count the number of lines in text. Empty lines are counted. Client-side.
Text OCR
Placeholder for paste image: no real OCR performed. Client-side only; paste image or enter text manually.
Text Word Frequency
Count how often each word appears and show a word frequency table. Client-side.
Binary Translator
Convert between binary and text. Encode text to binary (UTF-8) or decode binary to text. Client-side.
Hex to Text Converter
Decode hexadecimal to text (UTF-8). Paste hex string and get readable text. Client-side.
Text to Hex Converter
Encode text to hexadecimal (UTF-8). Each character becomes hex bytes. Client-side.
Upside Down Text Generator
Flip text upside down using Unicode characters. Client-side.
Text to Speech Converter
Speak text aloud using the browser SpeechSynthesis API. No server; uses your device voice. Client-side.
Trim Text
Trim whitespace from the start and end of text. Remove leading and trailing spaces, tabs, or newlines. Client-side only.
Truncate Text
Cut text to a maximum length and add an ellipsis. Truncate by characters or words. Client-side only.
Undo Zalgo Text Effect
Remove combining characters (Zalgo effect) from text. Strip diacritics and stacking marks to get clean, readable text. Client-side only.
Unescape Text
Unescape HTML entities and JSON escape sequences. Convert & to &, \n to newline, and similar. Client-side only.
Unfake Text
Replace or remove common placeholder and fake text (e.g. lorem ipsum, xxx, placeholder). Clean copy for real content. Client-side only.
Unindent Text
Remove common leading indentation from each line. Align the first character of every line by stripping shared leading spaces or tabs. Client-side only.
Unwrap Text Lines
Join lines into a single paragraph. Remove line breaks between lines so text flows as one block. Optionally add a space between joined lines. Client-side only.
Visualize Text Structure
Show the structure of text: line count, word count per line, character count, and a simple tree view. Useful for debugging or teaching. Client-side only.
HTML Text Link
Wrap text in an HTML anchor tag. Turn plain text or a phrase into a clickable link with a URL. Client-side only.
Word Combiner
Join words or lines with a character or string. Combine a list of words with a separator (comma, dash, space, or custom). Client-side only.
Wrap Words in Text
Wrap text to a maximum line width. Break long lines at word boundaries so each line is at most N characters. Client-side only.
Write Text in Bold
Convert text to bold using HTML <b> tags or Unicode mathematical bold characters. No font required for Unicode. Client-side only.
Write Text in Cursive
Convert text to cursive or script style using HTML <em> or Unicode mathematical script characters. Client-side only.
Write Text in Italic
Convert text to italic using HTML <i> tags or Unicode mathematical italic characters. Client-side only.
Write Text in Subscript
Convert text to subscript using HTML <sub> tags or Unicode subscript characters (digits and some letters). Client-side only.
Write Text in Superscript
Convert text to superscript using HTML <sup> tags or Unicode superscript characters (digits and some letters). Client-side only.
Calculators
View all →Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Free temperature converter.
Tip Calculator
Calculate tip and split the bill. Enter bill amount, tip percentage, and number of people.
Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers. Supports 1–3999.
Combinations Calculator
Calculate C(n,r) — the number of ways to choose r items from n without order. Uses n!/(r!(n-r)!).
Combinations with Replacement Calculator
Calculate the number of ways to choose r items from n with repetition allowed. Formula: C(n+r-1, r).
Even Permutations Calculator
Count how many permutations of n objects are even (expressible as an even number of swaps). For n ≥ 2, equals n!/2.
Factorial Calculator
Calculate n! (n factorial) — the product of all positive integers from 1 to n.
Fibonacci Calculator
Generate Fibonacci sequence. Enter how many terms you need. F(n) = F(n-1) + F(n-2).
Multi-Factorial Calculator
Calculate double factorial (n!!), triple factorial (n!!!), and higher. n!! = n × (n−k) × (n−2k) × ...
Odd Permutations Calculator
Count how many permutations of n objects are odd (expressible as an odd number of swaps). For n ≥ 2, equals n!/2.
Pascal's Triangle Calculator
Generate Pascal's triangle. Each row gives binomial coefficients. Used in combinatorics and algebra.
Permutations Calculator
Calculate P(n,r) — the number of ways to arrange r items from n with order. Uses n!/(n-r)!.
Circular Permutations Calculator
Calculate the number of ways to arrange n distinct objects in a circle. Formula: (n-1)!.
Permutations with Replacement Calculator
Calculate the number of ways to arrange r items from n with repetition allowed. Formula: n^r.
Absolute Difference Calculator
Calculate the absolute difference between two numbers: |a − b|.
Absolute Value Calculator
Calculate the absolute value |x| of any number.
Completing the Square Calculator
Convert ax² + bx + c to vertex form a(x − h)² + k and find the vertex.
Cube Calculator
Calculate the cube of a number: x³ = x × x × x.
Perfect Cubes List
List perfect cubes (0³, 1³, 2³, …) and check if a number is a perfect cube.
Cube Root Calculator
Calculate the cube root ∛x. Works for positive and negative numbers.
Cubic Equation Calculator
Solve cubic equations ax³ + bx² + cx + d = 0. Find real roots using numerical methods.
Difference of Two Squares Calculator
Factor a² − b² as (a + b)(a − b). Enter two numbers to see the identity.
Dot Product Calculator
Calculate the dot product of two vectors. Enter components for 2D or 3D vectors.
Exponent Calculator
Calculate base raised to an exponent: xⁿ. Supports integers and decimals.
Fraction Exponent Calculator
Calculate x^(m/n): the n-th root of x^m. Handles fractional exponents.
Solve for Exponent Calculator
Solve b^x = y for x (i.e. find x = log(y)/log(b)).
Fifth Root Calculator
Calculate the fifth root of a number: ⁵√x = x^(1/5).
FOIL Calculator
Expand (ax + b)(cx + d) using the FOIL method. First, Outer, Inner, Last.
Fourth Root Calculator
Calculate the fourth root of a number: ⁴√x = x^(1/4). Principal (non-negative) root for x ≥ 0.
Large Exponent Calculator
Calculate very large powers (e.g. 2^1000) using BigInt. Handles integers only.
Logarithm Equation Calculator
Solve log_base(x) = y for x (x = base^y) or for the exponent. Common and natural log supported.
Percent Change Calculator
Calculate percent change from old value to new value: ((new − old) / old) × 100.
Percent Difference Calculator
Calculate percent difference between two values: 2|a − b| / (a + b) × 100. Symmetric comparison.
Percent Error Calculator
Calculate percent error: |measured − actual| / actual × 100. Used in labs and quality checks.
Percentage Decrease Calculator
Find the value after a percentage decrease: new = original × (1 − p/100).
Percentage Increase Calculator
Find the value after a percentage increase: new = original × (1 + p/100).
Quadratic Formula Calculator
Solve quadratic equations ax² + bx + c = 0 using the quadratic formula. Get real and complex roots.
Radical Calculator
Calculate the n-th root of x: ⁿ√x = x^(1/n). Supports any positive integer n.
Simplify Radicals Calculator
Simplify √n to the form a√b where b is square-free. Integer radicands only.
Square Calculator
Calculate the square of a number: x² = x × x.
Square Roots Calculator
Calculate square roots (√x). Get the principal (positive) root and see if the number is a perfect square.
Square Footage Calculator
Calculate area in square feet from length and width. Use for flooring, painting, or land area.
Concrete Calculator
Estimate cubic yards of concrete needed for slabs, footings, or columns. Enter length, width, and depth.
Gravel Calculator
Estimate cubic yards of gravel or crushed stone needed. Enter length, width, and depth in inches.
Paint Calculator
Estimate gallons of paint needed from wall area and coverage. Supports multiple coats.
Cubic Feet Calculator
Calculate volume in cubic feet from length, width, and height. Use for shipping, storage, or room volume.
Cubic Yards Calculator
Calculate volume in cubic yards from length, width, and height in feet. Common for concrete and bulk materials.
Mulch Calculator
Estimate cubic yards of mulch needed for beds or landscaping. Enter area and depth in inches.
Topsoil Calculator
Estimate cubic yards of topsoil needed for lawns or raised beds. Enter length, width, and depth.
Feet and Inches Calculator
Add, subtract, or convert feet and inches. Enter values in ft and in; get results and decimal feet.
Roadway / Asphalt Calculator
Estimate tons of asphalt or road base needed. Enter length, width, depth, and density (or use default).
Tank Volume Calculator
Calculate volume of rectangular or cylindrical tanks. Enter dimensions in feet; get cubic feet and gallons.
Compound Interest Calculator
Calculate compound interest: principal, rate, time, and compounding frequency.
Discount Calculator
Calculate discounted price from original price and discount percentage.
GST Calculator
Add or remove GST from a price. Calculate GST amount and total.
Mortgage Calculator
Estimate monthly mortgage payment from loan amount, interest rate, and term in years.
Simple Interest Calculator
Calculate simple interest: I = P × r × t. Principal, rate, and time.
VAT Calculator
Add or remove VAT from a price. Calculate VAT amount and total.
Car Loan Calculator
Calculate monthly car loan payment from loan amount, APR, and term.
Compound Interest Calculator
Calculate future value with compound interest. Principal, rate, time, compounding frequency.
Compound Interest Calculator (Periodic Contributions)
Calculate future value with compound interest and regular periodic contributions.
EMI Loan Calculator
Calculate Equated Monthly Installment (EMI) for a loan. Principal, rate, and term.
Hourly to Salary Calculator
Convert hourly wage to annual salary. Enter hourly rate and hours per week.
Loan Calculator Index
Quick loan payment estimate. Enter loan amount, annual rate, and term in months for monthly payment.
Interest-Only Mortgage Calculator
Calculate monthly interest-only payment. Principal and annual rate.
Loan Calculator
Calculate monthly loan payment. Enter principal, annual interest rate, and term in months.
Advanced Loan Calculator
Loan payment with optional down payment and compound frequency. Full amortization summary.
Simple Loan Calculator
Quick monthly payment estimate. Principal, annual rate, term in months.
Mortgage Calculator
Estimate monthly mortgage payment. Loan amount, interest rate, and term in years.
Profit Margin Calculator
Calculate profit margin percentage from cost and revenue (or selling price).
Salary to Hourly Calculator
Convert annual salary to hourly wage. Enter salary and hours worked per week.
Reverse Sales Tax Calculator
Find price before tax from a total that includes sales tax. Enter total and tax rate.
Sales Tax Calculator (State & Local)
Add state and local sales tax to a price. Enter price and tax rate(s).
Simple Interest Calculator
Calculate simple interest: I = P × r × t. Principal, rate, time in years.
Age Calculator
Calculate your age in years, months, and days from your birth date to today (or a target date).
Chronological Age Calculator
Calculate chronological age in years, months, and days from birth date to a given date.
Gas Mileage Calculator
Calculate miles per gallon (MPG) or fuel economy. Enter distance and fuel used.
Stopwatch
Simple stopwatch: start, pause, and reset. Elapsed time in hours, minutes, seconds.
BMI Calculator
Calculate Body Mass Index from weight and height. Metric (kg, cm) or imperial (lb, in).
BMI Calculator for Women
Calculate BMI for women. Same formula as standard BMI; interpretation may use gender-specific guidelines.
Average Calculator
Calculate the average (mean) of a list of numbers. Enter numbers separated by commas or spaces.
Body BMI Calculator
Calculate Body Mass Index from weight (kg) and height (cm).
Discount Calculator
Calculate sale price after a discount percentage. Original price and discount %.
GST Calculator
Add or remove GST from a price. Enter amount and GST rate %.
Quadratic Equation Calculator
Solve ax² + bx + c = 0. Enter coefficients a, b, c for real roots.
Square Root Calculator
Calculate the square root of a number. Supports decimals and whole numbers.
Adding Fractions Calculator
Add two fractions. Enter numerators and denominators; result in simplest form.
Average (Mean) Calculator
Calculate the arithmetic mean of a list of numbers.
Dividing Fractions Calculator
Divide two fractions. Enter numerators and denominators; result in simplest form.
Fractions Calculator
Add, subtract, multiply, or divide two fractions. Result in simplest form.
Multiplying Fractions Calculator
Multiply two fractions. Enter numerators and denominators; result in simplest form.
Percentage Calculator
Calculate what is X% of Y, or X is what percent of Y.
Random Number Generator
Generate a random integer between a minimum and maximum (inclusive).
Simplifying Fractions Calculator
Simplify a fraction to lowest terms. Enter numerator and denominator.
Standard Deviation Calculator
Calculate sample or population standard deviation and variance from a list of numbers.
Subtracting Fractions Calculator
Subtract two fractions. Enter numerators and denominators; result in simplest form.
Weighted Average Calculator
Calculate weighted average. Enter values and their weights (e.g. grades and credits).
Percentage Calculator
Find what is X% of Y, or what percent X is of Y. Simple percentage calculations.
Probability Calculator
Calculate simple probability: P(event) = favorable outcomes / total outcomes.
Sales Tax Calculator
Add sales tax to a price. Enter price and tax rate %.
Adding Fractions Calculator
Add two fractions. Enter numerators and denominators; get result in simplest form.
Decimal to Fraction Calculator
Convert a decimal number to a fraction in simplest form.
Decimal to Percent Calculator
Convert a decimal to a percentage. Multiply by 100.
Fraction to Decimal Calculator
Convert a fraction to a decimal. Enter numerator and denominator.
Fraction to Percent Calculator
Convert a fraction (numerator/denominator) to a percentage.
Fractions Calculator
Add, subtract, multiply, or divide two fractions. Result in simplest form.
Fractions Calculators
Add, subtract, multiply, or divide two fractions. One operation at a time, result in simplest form.
Mixed Number to Percent Calculator
Convert a mixed number (e.g. 1 1/4) to a percentage.
Simplifying Complex Fractions Calculator
Simplify a complex fraction (a/b)/(c/d) to a single fraction in lowest terms.
Binary to Decimal Converter
Convert a binary number to decimal.
Decimal to Binary Converter
Convert a decimal number to binary.
Decimal to Fraction Converter
Convert a decimal number to a fraction in simplest form.
Decimal to Hex Converter
Convert a decimal number to hexadecimal.
Fraction to Decimal Converter
Convert a fraction (numerator/denominator) to a decimal.
Hex to Decimal Converter
Convert a hexadecimal number to decimal.
College GPA Calculator
Calculate your college GPA from letter grades and credit hours.
Final Grade Calculator
Find what grade you need on the final to reach a desired course grade.
GPA Calculator
Calculate GPA from letter grades and credit hours.
GPA to Letter Grade Calculator
Convert a GPA (0–4) to the equivalent letter grade.
Grade Calculator
Calculate weighted average grade from course grades and credits.
High School GPA Calculator
Calculate your high school GPA from letter grades and credit hours.
Letter Grade to GPA Calculator
Convert a letter grade to the equivalent GPA value (4.0 scale).
Final Grade Calculator
Calculate your final course grade from current grade and final exam, or find the grade needed on the final.
GPA Calculator
Calculate your GPA from letter grades and credit hours (4.0 scale).
Grade Calculator
Calculate weighted average grade from multiple grades and credits.
Mean Median Mode Calculator
Calculate mean, median, and mode from a list of numbers.
Standard Deviation Calculator
Calculate mean, variance, and standard deviation (sample or population) from a list of numbers.
Vote Percentage Calculator
Calculate the percentage of votes for a candidate or option out of total votes.
Age Calculator (Time)
Calculate age in years, months, and days from birth date to today or a target date.
Countdown Timer
Count down to a target date and time. See days, hours, minutes, and seconds remaining.
Date Difference Calculator
Calculate the difference between two dates in days, months, or years.
Stopwatch Timer
Simple stopwatch: start, pause, and reset. Elapsed time in hours, minutes, seconds.
Time and Date Difference Calculator
Calculate the difference between two dates and times in days, hours, minutes, and seconds.
Random Number Generator
Generate a random integer between a minimum and maximum (inclusive).
CM to Inches Converter
Convert centimeters to inches. Quick and accurate length conversion.
Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius. Formula: C = (F − 32) × 5/9.
Inches to CM Converter
Convert inches to centimeters. 1 inch = 2.54 cm.
Kilograms to Pounds Converter
Convert kilograms to pounds. 1 kg = 2.205 lb.
Meters to Feet Converter
Convert meters to feet. 1 m ≈ 3.28084 ft.
Pounds to Kilograms Converter
Convert pounds to kilograms. 1 lb ≈ 0.453592 kg.
CM to Inch Converter
Convert centimeters to inches. Simple and accurate length conversion.
Feet to Meter Converter
Convert feet to meters. 1 ft = 0.3048 m.
KM to Mile Converter
Convert kilometers to miles. 1 km ≈ 0.6214 miles.
Mile to KM Converter
Convert miles to kilometers. 1 mile ≈ 1.60934 km.
Compound Interest Formula
Understand and calculate compound interest. A = P(1 + r/n)^(nt). Calculator included.
Future Value Calculator
Calculate future value with compound interest. Enter principal, rate, compounding, and time.
Future Value Calculator (Basic)
Simple future value calculation. Principal, rate, and time in years.
Future Value Investment Calculator
Calculate future value with optional periodic contributions. Compound interest plus regular deposits.
Savings Calculators
Simple and compound savings calculators. See how your savings grow over time.
Inflation Calculator
See how much a sum will be worth in the future given an inflation rate. Amount × (1 + rate)^years.
Investment Calculator
Calculate future value with initial investment and regular contributions. Compound growth over time.
Investment Inflation Calculator
Combine investment growth and inflation. See real (inflation-adjusted) future value.
Markup Calculator
Calculate selling price from cost and markup %, or find markup % from cost and selling price.
Net Present Value Calculator
Calculate NPV from initial investment, discount rate, and comma-separated cash flows. NPV = -C0 + sum(Ct/(1+r)^t).
Present Value Calculator
Calculate present value of a single future amount. PV = FV / (1 + r)^n.
Present Value Calculator (Basic)
Simple present value of a single future amount. PV = FV / (1 + r)^n.
Present Value Investment Calculator
Calculate present value of multiple cash flows with a discount rate. Enter comma-separated cash flows.
Profit Calculator
Calculate profit and profit margin from revenue and cost. Profit = revenue - cost; margin % = profit / revenue × 100.
Retirement Savings Calculator
Estimate future value at retirement: current age, retirement age, current savings, monthly contribution, annual return %.
Return on Investment (ROI) Calculator
Calculate ROI percentage from initial investment and final value (or gain). ROI = (final - initial) / initial × 100.
Salary Inflation Calculator
Estimate future salary with inflation. Future salary = current salary × (1 + inflation rate)^years.
Savings Calculator
Compound savings: initial amount, monthly deposit, annual rate %, and years. Computes future value.
Hours Calculator
Add or subtract time in hours and minutes. Enter times like 2:30 or 1:45 to get total hours:minutes.
Circle Calculator
From radius find area and circumference. Area = πr², circumference = 2πr.
Midpoint Calculator
Find the midpoint of a line segment. Given (x1,y1) and (x2,y2), midpoint = ((x1+x2)/2, (y1+y2)/2).
Pythagorean Theorem Calculator
Right triangle: enter two legs to get hypotenuse c = √(a²+b²), or enter hypotenuse and one leg to get the other leg.
Slope Calculator
Slope between two points (x1,y1) and (x2,y2). Slope = (y2 - y1) / (x2 - x1).
Triangle Law of Cosines Calculator
Given two sides a, b and included angle C (degrees): find side c. Or given three sides: find angle C.
Triangle Law of Sines Calculator
Solve triangle using law of sines: two angles and a side, or two sides and a non-included angle. a/sin(A) = b/sin(B) = c/sin(C).
Triangle Theorems
Triangle facts: angles sum to 180°. Enter two angles to find the third, or see key formulas.
Equilateral Triangle Calculator
From side length find area, height, and perimeter of an equilateral triangle.
Isosceles Triangle Calculator
Two equal sides and base (or base and height): find area and perimeter of an isosceles triangle.
Right Triangle Calculator
Two legs → hypotenuse and area; or one leg and hypotenuse → other leg. Uses Pythagorean theorem.
Surface Area Calculator
Surface area of cube (side), sphere (r), cylinder (r, h), or cone (r, h). Select shape and enter dimensions.
Volume Calculator
Volume of cube, sphere, cylinder, or cone. Select shape and enter dimensions.
Pace Calculator
From distance (e.g. miles) and time (e.g. 0:25:00 for 25 min), get pace per unit (min:sec per mile).
Target Heart Rate Zone Calculator
From age get max HR ≈ 220 - age, then heart rate zones (e.g. 50-60%, 60-70%, 70-80%, 80-90% of max).
Confidence Interval Calculator
CI for mean: mean, standard deviation, sample size n, confidence % (90/95/99). CI = mean ± z × (s/√n).
Pythagorean Theorem Calculator (Math)
Right triangle: two legs a, b → hypotenuse c = √(a²+b²). Or hypotenuse c and one leg → other leg.
Right Triangle Calculator
Solve right triangles: enter two legs or one leg and hypotenuse to get the other side and angles in degrees.
Scientific Notation Calculator
Convert between numbers and scientific notation (e.g. 1.5e6). Bidirectional conversion.
Variance Calculator
Enter a comma-separated list of numbers to get population and sample variance.
Percent to Decimal Calculator
Convert a percent value to a decimal (e.g. 50% → 0.5).
Percent to Fraction Calculator
Convert a percent to a fraction in lowest terms (e.g. 75% → 3/4).
Scientific Notation Converter
Convert a number to scientific notation, or convert scientific notation (e.g. 1.5e6) to decimal.
Speed Distance Time Calculator
Given two of speed, distance, and time, solve for the third using s = d/t, d = s×t, t = d/s.
Decimal to Percent Converter
Convert a decimal number to a percent (e.g. 0.5 → 50%).
Fraction to Percent Converter
Enter numerator and denominator to convert a fraction to a percent.
Percent to Decimal Converter
Convert a percent to a decimal (e.g. 50% → 0.5).
Percent to Fraction Converter
Convert a percent to a fraction in lowest terms (e.g. 75% → 3/4).
Scientific Notation Converter
Convert between scientific notation (e.g. 1.5e6) and decimal numbers. Bidirectional.
Kinetic Energy Calculator
Calculate kinetic energy KE = ½mv² from mass (kg) and velocity (m/s). Result in joules.
Velocity Calculator (v = u + at)
Calculate final velocity from initial velocity u, acceleration a, and time t: v = u + a×t.
Work Calculator
Calculate work W = F×d from force (N) and distance (m). Result in joules.
Final Grade Calculator
Find the required final exam score: enter current grade %, final exam weight %, and desired course grade %.
Percentile Calculator
Enter a list of numbers and a percentile (e.g. 90) to get the value at that percentile (linear interpolation).
Variance Calculator
Enter comma-separated numbers to compute population and sample variance.
Z-Score Calculator
Compute z = (x − mean) / std dev from value, mean, and standard deviation.
Work Hours Calculator
Calculate total hours from start and end time, or from a list of shifts (e.g. 9:00-17:00).
Trigonometric Functions (Degrees)
Get sin, cos, and tan for an angle in degrees, or view a table of values from 0° to 360°.
Trigonometric Functions (Radians in π)
Get sin, cos, and tan for an angle in radians as a multiple of π (e.g. π/2, π/4).
Inverse Trigonometric Functions
Enter a value (−1 to 1 for asin/acos) to get the angle in degrees: arcsin, arccos, arctan.
Trigonometric Functions Calculator
Enter an angle in degrees to get sin, cos, and tan values.
Trigonometric Functions (Radians)
Enter an angle in radians (e.g. π/2, 1.57) to get sin, cos, and tan.
Binary to Hex Converter
Convert binary string (0s and 1s) to hexadecimal. Handles padded or space-separated binary.
Hex to Binary Converter
Convert hexadecimal string to binary (0s and 1s). Handles with or without 0x prefix.
Words to Pages Converter
Estimate page count from word count using a configurable words-per-page (e.g. 250).
Area Calculator
Calculate area for rectangle, circle, and triangle. Enter dimensions and get area instantly.
Speed Converter
Convert between speed units: km/h, mph, m/s, knots, ft/s. Enter a value and get instant conversions.
Temperature Converter
Convert between Celsius (°C), Fahrenheit (°F), and Kelvin (K). Enter a value and see all three scales.
CM to Feet Converter
Convert centimeters to feet (decimal). Enter cm and get the equivalent in feet.
CM to Feet and Inches
Convert centimeters to feet and inches (e.g. 170 cm → 5 ft 7 in). Common for height.
Feet to CM Converter
Convert feet to centimeters. Enter feet (decimal) and get the equivalent in cm.
Feet to KM Converter
Convert feet to kilometers. Enter feet and get the equivalent in km.
Height Converter
Convert height between feet/inches and centimeters. Enter in one unit, get the other.
KM to Feet Converter
Convert kilometers to feet. Enter km and get the equivalent in feet.
Degrees to Radians Converter
Convert angle from degrees to radians. Formula: radians = degrees × π / 180.
Radians to Degrees Converter
Convert angle from radians to degrees. Formula: degrees = radians × 180 / π.
Effective Interest Rate Calculation
Convert nominal annual rate to effective annual rate using (1 + r/n)^n - 1 with compounding periods per year.
Effective Interest Rate Calculator
Convert nominal annual rate and compounding periods per year to effective annual rate (EAR) as a percentage.
Amortization Equal Principal Payments Calculator
Loan amount, annual rate, and term in years: get equal principal per period plus interest per period (summary or table).
Amortization Schedule Calculator
Generate full amortization schedule: loan amount, rate %, term in months. Payment, principal, interest, and balance for each period.
APR Calculator
Estimate APR from loan amount, optional fees, interest rate, and term. Uses approximate formula (2×n×I)/(P×(N+1)) or standard method.
APR Calculator Basic
Simple APR calculator: loan amount, rate, and term. Get approximate APR with minimal inputs.
CAGR Calculator
Compound Annual Growth Rate: beginning value, ending value, and years. CAGR % = (end/start)^(1/years) - 1.
Checkbook Balance Calculator
Starting balance plus a list of transactions (one per line: +amount or -amount). See running balance after each transaction.
Checkbook Calculator
Starting balance plus a list of transactions (one per line: +amount or -amount). Get final balance.
Currency Appreciation Depreciation Calculator
Original exchange rate and new rate: compute percentage appreciation or depreciation of a currency.
Depreciation Activity Method Calculator
Cost, salvage value, total units of production, and units used this period. Depreciation expense using the activity (units of production) method.
Depreciation Calculator
Cost, salvage value, and useful life in years. Annual straight-line depreciation.
Depreciation Declining Balance Calculator
Cost, salvage value, useful life, and decline rate %. Declining balance depreciation per period.
Double Declining Balance Depreciation Calculator
Cost, salvage value, and useful life. Double-declining balance (DDB) depreciation per year.
Fixed Declining Balance Depreciation Calculator
Cost and fixed declining balance rate %. Book value and depreciation each period (fixed % applied to remaining book value).
Real Estate Property Depreciation Calculator
Cost and recovery period (e.g. 27.5 years for residential rental). Annual straight-line real estate depreciation.
Straight Line Depreciation Calculator
Cost, salvage value, and useful life. Annual straight-line depreciation amount.
Sum of Years Digits Depreciation Calculator
Cost, salvage value, and useful life. Sum-of-years-digits depreciation per year (front-loaded).
Units of Production Depreciation Calculator
Cost, salvage value, total units expected, and units used this period. Depreciation expense (units of production method).
Variable Declining Balance Depreciation Calculator
Cost, salvage value, useful life, and variable decline rate %. Variable declining balance depreciation per period.
Effective Interest Rate Calculator
Nominal annual rate and compounding periods per year. Get effective annual rate (EAR) as a percentage.
Index: Depreciation Calculators
Overview of depreciation calculator types: straight-line, declining balance, units of production, sum-of-years-digits, and more.
Index: Financial Ratio Calculators
Overview of financial ratio calculator types: liquidity, profitability, leverage, efficiency, and valuation ratios.
Index: Interest and APR Calculators
Overview of interest and APR calculator types: effective rate, APR, amortization, compound interest, and related tools.
Property Tax Calculator
Assessed value and tax rate (mill rate or percentage). Calculate property tax due.
Aspect Ratio Calculator
Enter width and height to get aspect ratio (e.g. 16:9) and the GCD-reduced ratio.
PPI Calculator
Calculate pixels per inch from screen width, height (px), and diagonal (inches). PPI = √(width² + height²) / diagonal.
ASCII to Decimal Converter
Convert a character or ASCII code to its decimal value (e.g. A → 65).
Decimal to ASCII Converter
Convert a decimal number (0–255) to its ASCII character.
Parallelogram Calculator
Calculate area from base and height, or from two sides and included angle. Area = base × height or a × b × sin(θ).
Polygon Calculator
Calculate area and perimeter of a regular polygon from number of sides and side length (or circumradius).
Rectangle Calculator
Calculate area, perimeter, and diagonal from length and width.
Rhombus Calculator
Calculate area and perimeter from diagonals, or from side and height. Area = (d₁×d₂)/2 or side×height.
Cone Calculator
Calculate volume, slant height, and surface area of a right circular cone from radius and height.
Cylinder Calculator
Calculate volume and surface area of a right circular cylinder from radius and height.
Hemisphere Calculator
Calculate volume and curved surface area of a hemisphere from radius. Volume = (2/3)πr³, curved area = 2πr².
Sphere Calculator
Calculate volume and surface area of a sphere from radius. Volume = (4/3)πr³, surface = 4πr².
Conception Calculator
Estimate conception date from due date (≈266 days before) or from last menstrual period (LMP) date (≈14 days after LMP).
Arccos Calculator
Inverse cosine: enter a value from -1 to 1 to get the angle in degrees. arccos(x) = angle whose cosine is x.
Arcsin Calculator
Inverse sine: enter a value from -1 to 1 to get the angle in degrees. arcsin(x) = angle whose sine is x.
Arctan Calculator
Inverse tangent: enter a value to get the angle in degrees. arctan(x) = angle whose tangent is x.
Cosine Calculator
Calculate cosine of an angle. Enter angle in degrees to get cos(angle).
Factorial Calculator
Calculate n! (n factorial) for non-negative integers. n! = n × (n-1) × … × 1; 0! = 1.
Logarithm Calculator
Calculate logarithm: log_base(value). Enter value and base to get log_base(value). Natural log (base e) when base is e or left blank.
Sine Calculator
Calculate sine of an angle. Enter angle in degrees to get sin(angle).
Tangent Calculator
Calculate tangent of an angle. Enter angle in degrees to get tan(angle).
Antilog Calculator
Calculate antilog: base^value. Enter value and base to get base raised to the power of value.
Exponent Calculator
Calculate base^exponent. Enter base and exponent to get the power result.
GCF Calculator
Find the Greatest Common Factor (GCF), also called GCD, of two integers. GCF is the largest positive integer that divides both numbers.
LCM Calculator
Find the Least Common Multiple (LCM) of two positive integers. LCM is the smallest positive integer divisible by both numbers.
Percent Error Calculator
Calculate percent error between measured and actual (or accepted) value. Percent error = |measured - actual| / actual × 100.
Ratio Calculator
Simplify ratio a:b, and show ratio as fraction and percentage. Enter two numbers to get the ratio in simplest form and equivalent fraction/percent.
PayPal Fee Calculator
Calculate PayPal fees (e.g. 2.9% + $0.30) from amount received or sent. See net and gross amounts.
GCF Calculator
Find the Greatest Common Factor (GCF) of two integers. Same as GCD — the largest positive integer that divides both.
GCF Euclid's Algorithm
Find the Greatest Common Factor of two integers using Euclid's algorithm. Optionally show step-by-step work.
Golden Ratio Calculator
Given one number, find the other so that their ratio equals φ (golden ratio ≈ 1.618). Or display φ.
LCM Calculator
Find the Least Common Multiple (LCM) of two integers. LCM is the smallest positive integer divisible by both.
Modulo Calculator
Compute a mod b: the remainder when a is divided by b. Handles negative numbers with standard remainder behavior.
Prime Factorization Calculator
Decompose an integer into its prime factors. See the full factorization (e.g. 60 = 2² × 3 × 5).
Prime Number Calculator
Check if a given integer n is prime. A prime has exactly two positive divisors: 1 and itself.
Prime Numbers List
List all prime numbers in a given range [min, max]. Useful for math and programming.
Friction Calculator
Compute friction force F = μN from coefficient of friction μ and normal force N. Simple physics calculator.
Ideal Gas Law Calculator
Solve PV = nRT: enter three of P (pressure), V (volume), n (moles), T (temperature) and get the fourth. R = 8.314 J/(mol·K).
Impulse Calculator
Compute impulse J = F × Δt (force × time) or J = m × Δv (mass × change in velocity). Units: N·s or kg·m/s.
Impulse–Momentum Calculator
Relate impulse to change in momentum: impulse = Δp = m·Δv = F·Δt. Solve for any one quantity given the others.
Wavelength Calculator
Convert between frequency f (Hz) and wavelength λ: λ = c/f where c = 3×10⁸ m/s (speed of light).
Descriptive Statistics Calculator
Enter comma-separated numbers to get mean, median, mode, variance, standard deviation, min, and max.
Quartile Calculator
Compute Q1, Q2 (median), Q3, and IQR from comma-separated numbers. IQR = Q3 − Q1.
Sum Calculator
Add comma-separated numbers and get the sum. Quick total for a list of values.
Birthday Calculator
Enter your birth date to see age in years and days, or countdown to your next birthday.
Month Calendar
View a month calendar for any year and month. Client-side calendar grid (no server).
Day of the Week Calculator
Enter any date and get the day of the week (e.g. Monday, Tuesday).
Decimal to Time Calculator
Convert decimal hours (e.g. 2.5) to hours and minutes (e.g. 2:30). Useful for timesheets and payroll.
Government Shutdown Countdown
US government shutdown countdown: enter a target date (e.g. funding deadline) to see time remaining, or use a placeholder date.
How Old Am I?
Enter your birth date to get your exact age in years, months, and days.
Military Time Chart
Reference chart for 12-hour (AM/PM) to 24-hour (military) time conversion. Quick lookup table.
Military Time Converter
Convert between 12-hour time (AM/PM) and 24-hour military time. Enter a time and get the equivalent in the other format.
Time Clock Calculator
Calculate elapsed time between start and end, or add multiple time entries for a total. Useful for timesheets and work hours.
Time to Decimal Hours Calculator
Convert hours:minutes (e.g. 2:30) to decimal hours (e.g. 2.5) for payroll and time tracking.
ASCII to Binary Converter
Convert characters or text to 8-bit binary. Each character becomes its ASCII binary representation.
ASCII to Hex Converter
Convert characters or text to hexadecimal codes. Each character becomes its ASCII hex value.
Binary to ASCII Converter
Convert 8-bit binary strings to characters. Each 8-bit group becomes one ASCII character.
Hex to ASCII Converter
Convert hexadecimal codes to characters. Each pair of hex digits becomes one ASCII character.
Cubic Feet to Cubic Yards
Convert volume from cubic feet to cubic yards. Divide by 27 (1 yd³ = 27 ft³).
Cubic Yards to Cubic Feet
Convert volume from cubic yards to cubic feet. Multiply by 27 (1 yd³ = 27 ft³).
Annuity Table
Generate an annuity factor table from interest rate and periods. PV or FV annuity factors.
Bid Ask Calculator
Enter bid and ask prices to get spread and spread percentage.
Debt Ratios Calculator
Enter total debt and total assets or equity to compute debt ratio and related ratios.
Deferred Fixed Annuity Calculator
Calculate payout for a deferred fixed annuity: principal, rate, years, and deferral period.
Future Value Annuity Calculator
Calculate future value of an annuity: payment, rate, and number of periods.
Future Value Table Annuity
Generate a future value annuity factor table from rate and number of periods.
Interest Rate Table
Static or simple table of interest rates vs period. Reference table for rate and period.
Layaway Plan Calculator
Calculate payment per month for a layaway plan: price, deposit, and number of months.
Liquidity Ratios Calculator
Enter current assets and current liabilities to get current ratio and quick ratio.
Nominal Interest Rate Calculator
Convert effective annual rate to nominal rate given compounding periods per year.
Periodic Interest Rate Calculator
Convert annual interest rate to periodic rate: annual rate and periods per year.
Present Value Annuity Calculator
Calculate present value of an ordinary annuity from payment, rate, and number of periods.
Present Value Annuity Factor Table
Generate a table of present value annuity factors for given rates and number of periods.
Profitability Ratios Calculator
Compute profit margin, ROE, ROA, and other profitability ratios from financial inputs.
Stock Ratios Calculator
Calculate P/E ratio, dividend yield, and other stock ratios from price, EPS, and dividend.
Bingo Card Generator
Generate random 5×5 bingo cards with numbers 1–75 (B: 1–15, I: 16–30, N: 31–45, G: 46–60, O: 61–75).
Bingo Number Generator
Generate random bingo numbers from 1 to 75 (B-I-N-G-O columns).
Dice Roller
Roll one or more dice (e.g. d6, d20). Choose sides and count, see the result.
Lottery Number Generator
Generate random lottery numbers with configurable range and count (no repeats).
Poker Calculator
Basic poker odds and hand rank helper. Enter your hand and board for a simplified evaluation.
Poker Hands
View poker hand rankings and list from best to worst (royal flush to high card).
Sudoku Calculator
Simple sudoku helper: check one row or column sum (1–9 = 45) or validate a set of nine digits.
Yu-Gi-Oh! Life Points Calculator
Track life points: start at 8000, add or subtract damage and healing.
Annulus Calculator
Calculate the area of an annulus (ring) from outer radius R and inner radius r. Area = π(R² − r²).
Capsule Calculator
Calculate volume and surface area of a capsule (cylinder with hemispherical ends).
Conical Frustum Calculator
Calculate volume and surface area of a conical frustum (truncated cone) from radii and height.
Pyramid Frustum Calculator
Calculate the volume of a pyramid frustum (truncated pyramid) from base areas or side lengths and height.
Tube Calculator
Calculate volume and surface area of a tube (hollow cylinder): outer radius R, inner r, height h.
Displacement Calculator (s = vt & s = v₀t + ½at²)
Calculate displacement: constant velocity s = vt or uniform acceleration s = v₀t + ½at².
Elastic Potential Energy Calculator
Calculate elastic potential energy U = ½kx² (spring: k = spring constant, x = displacement).
E = mc² Calculator
Calculate mass-energy equivalence: E = mc². Enter mass to get energy (c = speed of light).
Gravitational Potential Energy Calculator
Calculate gravitational potential energy U = -Gm₁m₂/r (two masses, distance r).
Coin Flipper
Flip a virtual coin: random heads or tails. Fair 50/50 outcome.
PIN Generator
Generate a random PIN (e.g. 4-digit or custom length). Useful for temporary codes.
Random Card Generator
Draw one or more random playing cards from a standard 52-card deck.
Statistics Formulas
Display common statistics formulas: mean, variance, standard deviation, and more.
Stem-and-Leaf Plot
Build a stem-and-leaf plot from a list of numbers. Enter numbers to see the plot.
Sunrise Sunset Calculator
Calculate sunrise and sunset times for any date and location (latitude/longitude) using a simple formula.
Binary Decoder
Decode binary strings to text (UTF-8). Paste a sequence of 0s and 1s to get the decoded result.
Roman Numeral Date Converter
Convert a year (e.g. 2024) to Roman numerals (MMXXIV). Quick and free.
MB to KB Converter
Convert between megabytes (MB) and kilobytes (KB). Enter a value and choose the direction.
Celsius to Rankine Converter
Convert Celsius (°C) to Rankine (°R). Formula: °R = °C × 9/5 + 491.67.
Fahrenheit to Rankine Converter
Convert Fahrenheit (°F) to Rankine (°R). Formula: °R = °F + 459.67.
Kelvin to Rankine Converter
Convert Kelvin (K) to Rankine (°R). Formula: °R = K × 9/5.
Percent to PPM Converter
Convert percent (%) to parts per million (PPM). Formula: PPM = percent × 10,000.
PPB to PPM Converter
Convert parts per billion (PPB) to parts per million (PPM). Formula: PPM = PPB ÷ 1,000.
PPM Converter
Convert between parts per million (PPM), percent (%), and parts per billion (PPB).
PPM to PPB Converter
Convert parts per million (PPM) to parts per billion (PPB). Formula: PPB = PPM × 1,000.
PPT to PPM Converter
Convert parts per trillion (PPT) to parts per million (PPM). Formula: PPM = PPT ÷ 1,000,000.
Rankine to Celsius Converter
Convert Rankine (°R) to Celsius (°C). Formula: °C = (°R − 491.67) × 5/9.
Rankine to Fahrenheit Converter
Convert Rankine (°R) to Fahrenheit (°F). Formula: °F = °R − 459.67.
Rankine to Kelvin Converter
Convert Rankine (°R) to Kelvin (K). Formula: K = °R × 5/9.
Simple Interest Calculator
Calculate simple interest I = P×r×t. Enter principal, annual rate, and time in years.
Adding Machine Calculator
Add numbers one by one and see a running total. Enter values and add to the sum.
Car Loan Payment Calculator
Calculate monthly car loan payment from loan amount, interest rate, and term using the PMT formula.
Certificate of Deposit (CD) Calculator
Calculate CD maturity value: principal, annual rate, and term (years or months) to get maturity value.
Currency Conversion Table
View or build a table of currency conversion rates. Enter base and quote currencies and rate to see conversions.
Currency Converter
Convert amount between currencies. Enter amount, from/to currency codes, and exchange rate (no API; user-provided or demo rates).
Effective Annual Rate (EAR) Calculator
Convert nominal annual rate and compounding frequency to Effective Annual Rate (EAR / APY).
Equivalent Interest Rate Calculator
Convert between nominal and effective rates, or between different compounding periods (e.g. annual to monthly equivalent).
Future Value of Cash Flows Calculator
Compute the future value of multiple cash flows at a given discount rate. Enter cash flows and rate.
Future Value of Investment Account Calculator
Calculate future value of regular deposits (annuity): periodic payment, rate, and number of periods.
Gross Pay Calculator
Calculate gross pay from hours worked and hourly rate, or from salary (annual/monthly).
How Much Car Can I Afford?
Estimate maximum car loan amount from your monthly budget, interest rate, and loan term.
How Much House Can I Afford?
Estimate maximum mortgage amount from income, debt-to-income ratio (DTI), interest rate, and term.
How Much Loan Can I Afford?
Find maximum loan amount from the monthly payment you can make, interest rate, and term.
Index: Money & Tax Calculators
Overview of tax and money-related calculators: income tax, sales tax, GST, payroll, and related tools.
Index: Personal Finance & Accounting
Overview of personal finance and accounting tools: budgets, loans, savings, mortgages, and related calculators.
Index: Sales Calculators
Overview of sales-related calculators: markup, markdown, list price, discount, sales tax, and related tools.
Index: Time Value of Money (TVM) Calculators
Overview of time value of money tools: present value, future value, annuities, cash flows, and related calculators.
List Price & Markdown Calculator
Calculate sale price from list price and markdown percentage. Sale price = List × (1 − markdown%).
Loan Payment Table (Amortization)
Generate an amortization table: loan amount, rate, term → monthly payment, principal, interest, and balance for each period (first rows + summary).
Loan Repayment Calculator
Calculate loan payment schedule: loan amount, rate, term → monthly payment, total interest, and total amount repaid.
Money Calculator
Add and subtract multiple money amounts. Enter values one per line or comma-separated and see the total.
Mortgage Payment Calculator
Calculate monthly mortgage payment from principal (P), annual rate (r), and term in years (n). PMT = P × [r(1+r)^n] / [(1+r)^n − 1].
Mortgage Repayment Calculator
Calculate mortgage payment and optionally total interest with extra payments. Principal, rate, term → payment and repayment summary.
Operations Ratios Calculator
Calculate common operations ratios: inventory turnover, receivables turnover, days in inventory, days sales outstanding, and related metrics.
Present Value of Cash Flows Calculator
Compute the present value of multiple cash flows at a given discount rate. Enter cash flows and rate.
Present Value Formula Calculator
Calculate present value using PV = FV / (1 + r)^n. Future value, rate, and periods.
Price Calculator
Calculate selling price from cost plus margin or markup percentage.
Profit Goal Calculator
Find required revenue to hit a target profit given your costs.
Rule of 72 Calculator
Estimate years to double your money: 72 divided by annual rate.
Sale Price Calculator
Original price and discount percentage to final sale price.
Sales Calculator
Sales amount plus tax rate to get total with tax.
Savings Goal Calculator
Goal, current savings, monthly contribution, and rate to find time or monthly amount needed.
Selling Price Calculator
Calculate selling price from cost and margin percentage.
Service Tax Calculator (India)
Calculate service tax and total amount for India. Amount and service tax %.
Simple Interest Plus Principal Calculator
Calculate simple interest and total (interest + principal). P, r, t.
Federal Tax Estimator
Simplified estimated federal income tax based on taxable income and filing status.
Time Card Calculator
Enter clock in and clock out times to get hours worked.
Financial Calculators Index
List of financial calculator tools: loans, savings, present value, tax, and more.
Draft Pick Value Calculator
Simplified draft pick value by position (sports). Pick number to relative value.
Odds Calculator
Convert between odds formats and implied probability. American, decimal, fractional.
Keyword to Total Words Ratio Calculator
Paste text and a keyword to get keyword count and ratio (keyword count / total words).
YouTube Thumbnail URL Grabber
Paste a YouTube URL to get thumbnail image URLs (from video ID). No fetch, client-side only.
Distance Between Two Points Calculator
Enter (x1, y1) and (x2, y2) to get the distance. 2D distance formula.
Geometric Shapes Area and Perimeter Calculator
Pick a shape and enter dimensions to get area and perimeter. Circle, square, rectangle, triangle.
Square Calculator
Enter side length to get area and perimeter of a square.
Stadium Shape Area Calculator
Stadium (oval + rectangle) dimensions to approximate area. Length and width/radius.
Pyramid Volume Calculator
Base area and height to get volume of a pyramid. V = (1/3) × base area × height.
Rectangular Prism Calculator
Length, width, and height to get volume and surface area.
Triangular Prism Volume Calculator
Base (triangle base length), height of triangle, and prism length to get volume.
Binary Calculator
Add or subtract binary numbers, or convert between binary and decimal.
Earnings Per Share (EPS) Calculator
Net income and number of shares to get earnings per share. EPS = Net income / Shares.
Hex Calculator
Add or subtract hexadecimal numbers, or convert between hex and decimal.
LTV Calculator
Calculate customer lifetime value: revenue per customer and retention (e.g. average order value × purchase frequency × lifespan).
Margin Calculator
Calculate profit margin percentage from cost and price: margin % = ((price − cost) / price) × 100.
Add Numbers Calculator
Add two or more numbers. Enter numbers separated by spaces or one per line.
Natural Log Calculator
Calculate the natural logarithm ln(x) for any positive number.
Math Calculators Index
Overview of free online math calculators: basic arithmetic, fractions, percentages, roots, logarithms, trigonometry, and more.
Nth Root Calculator
Calculate the nth root of x: ⁿ√x = x^(1/n). Enter n and x to get the result.
Number Base Converter
Convert numbers between bases: binary (2), octal (8), decimal (10), and hexadecimal (16).
Binary Calculator
Add or subtract binary numbers. Enter two binary values and get the result in binary.
Simple Calculator
Free online 4-function calculator: add, subtract, multiply, and divide.
Complex Number Calculator
Add, subtract, or multiply two complex numbers. Enter real and imaginary parts.
Convolution Calculator
Compute the discrete convolution of two sequences: sum of products (f * g)[n] = Σ f[k]·g[n−k].
Division Calculator
Divide two numbers: a ÷ b. Get quotient and optional decimal result.
Exponential Growth Calculator
Calculate exponential growth: P(t) = P₀ × e^(rt). Enter initial value P₀, rate r, and time t.
Fraction Simplifier
Simplify a fraction to lowest terms. Enter numerator and denominator to get the simplified form.
Hex Math Calculator
Add or subtract hexadecimal numbers, or convert between hex and decimal.
Multiplication Calculator
Multiply two or more numbers. Enter numbers separated by spaces or one per line.
Percentage Change Calculator
Calculate percent change from old to new: ((new − old) / old) × 100. Positive = increase, negative = decrease.
Percentage Increase Calculator
Find the value after a percentage increase: new = original × (1 + p/100).
Remainder Calculator
Calculate the remainder when a is divided by b: a mod b. Same as the remainder in integer division.
Basic Calculator
Simple online calculator with addition, subtraction, multiplication, and division (+ − × ÷).
Subtraction Calculator
Subtract two numbers: a − b. Enter the minuend and subtrahend to get the difference.
Trigonometry Calculator
Calculate sin, cos, and tan for an angle. Enter angle in degrees or radians.
Octal Calculator
Add or subtract octal numbers, or convert between octal and decimal.
Pre and Post Money Valuation Calculator
Calculate pre-money and post-money valuation from investment amount and equity percentage, or derive one from the other.
Adding and Subtracting Integers Calculator
Add or subtract two integers. Handles positive and negative numbers with correct sign rules.
Basic Calculator
Simple online calculator for addition, subtraction, multiplication, and division.
Common Factors Calculator
Find all common factors of two numbers. Enter two integers to get the list of factors that divide both.
Complex Fraction Calculator
Simplify complex fractions of the form (a/b)/(c/d). Enter numerators and denominators to get the simplified result.
Diamond Problem Solver
Given the sum and product of two numbers (x+y and x×y), find x and y using the diamond method.
Expanded Form Calculator
Write a number in expanded form (e.g. 1234 = 1000 + 200 + 30 + 4). Supports whole numbers and decimals.
Factors Calculator
List all factors of a number. Enter a positive integer to see every divisor.
Fractions Average Calculator
Calculate the average of two or more fractions. Enter fractions as numerator/denominator (e.g. 1/2, 3/4).
Comparing Fractions Calculator
Compare two fractions to see which is greater, less, or if they are equal. Enter numerators and denominators.
Equivalent Fractions Calculator
Check if two fractions are equivalent or find equivalent fractions for a given fraction (e.g. 1/2 = 2/4 = 3/6).
Fraction Estimating Calculator
Estimate a fraction by rounding to the nearest 0, 1/2, or 1. Useful for quick mental math and number sense.
Fraction on Number Line
Show a fraction on a number line (visual position between 0 and 1, or custom range). Helps visualize fraction size.
Order Fractions Calculator
Order a list of fractions from least to greatest (ascending) or greatest to least (descending).
Simplify Fraction Calculator
Simplify a fraction to lowest terms. Enter numerator and denominator to get the reduced form (GCD).
Solve for X in Proportion Calculator
Solve x in a proportion a/b = c/x (or a/b = x/d). Find the missing value in equivalent fractions.
Fraction to Decimal Table
Generate a table of common fractions and their decimal equivalents (e.g. 1/2 = 0.5, 1/4 = 0.25).
Lattice Multiplication Calculator
Multiply two numbers using the lattice (grid) method. Step-by-step grid for multi-digit multiplication.
Least Common Denominator Calculator
Find the least common denominator (LCD) of two or more fractions. LCD is the LCM of the denominators.
Long Addition Calculator
Column addition for multiple numbers. Add several numbers with carry, written in column form (long addition).
Long Division Calculator
Long division step-by-step: divide one number by another and see quotient, remainder, and steps.
Long Division with Decimals
Long division that gives a decimal quotient. Divide two numbers and get the result with decimal places (no remainder).
Long Multiplication Calculator
Multiply two numbers using long multiplication (column method). Step-by-step partial products.
Linear Equation Solver
Solve simple linear equations of the form ax + b = c for x. Enter coefficients a, b, c.
Mixed Number to Decimal Calculator
Convert a mixed number (whole + fraction, e.g. 2 1/4) to a decimal. Enter whole part, numerator, and denominator.
Mixed Number to Improper Fraction
Convert a mixed number to an improper fraction. Enter whole, numerator, and denominator (e.g. 2 1/3 → 7/3).
Add and Subtract Mixed Numbers
Add or subtract two mixed numbers. Enter whole parts and fractions; result is shown as a mixed number or improper fraction.
Money Math Calculator
Add or subtract money amounts. Enter values with or without currency symbol (e.g. 10.50, $5.25).
Multiples Calculator
List the first N multiples of any number. Enter a number and limit to see its multiples.
Multiplication Tables
Generate multiplication tables (e.g. 1×1 to 12×12). Choose range and see the full table.
Number Word Notation to Standard
Convert number words (e.g. one hundred twenty-three) to standard numeric form.
Percentage Calculator
Find what percent one number is of another (part/whole), or find a percent of a number.
Place Value Calculator
Break a number into place values: ones, tens, hundreds, thousands, and decimal places.
Ratio Simplifier
Simplify a ratio a:b to its lowest terms using the GCD (e.g. 8:12 → 2:3).
Ratio to Fraction Calculator
Convert a ratio a:b to a fraction—either a/(a+b) (part of whole) or a/b.
Ratios Calculator (Proportion)
Solve for the missing term in two equal ratios (proportion): a:b = c:d. Enter three values to find the fourth.
Round to Nearest Multiple
Round a number to the nearest multiple (e.g. round 23 to nearest 5 → 25).
Rounding Methods Calculator
Round a number using different methods: half up, half down, half even (banker's), ceiling, floor.
Rounding Numbers
Round a number to a specified number of decimal places (half up).
Significant Figures Calculator
Count the number of significant figures in a given number.
Significant Figures Counter
Count significant figures in a number and see the rules: leading zeros, trailing zeros, and which digits count.
Significant Figures Rounding
Round a number to a specified number of significant figures.
Standard Form Calculator
Convert between standard decimal form and scientific notation (e.g. 1200 ↔ 1.2×10³).
Unit Rate Calculator
Find the rate per single unit: enter quantity and total cost (or other measure) to get rate per unit.
Acceleration Calculator
Calculate acceleration from velocity and time (a = v/t) or from force and mass (a = F/m).
Density Calculator
Calculate density from mass and volume: ρ = m/V. Enter mass and volume to get density.
Force Calculator
Calculate force from mass and acceleration: F = ma (Newton's second law).
Minutes to Decimal Converter
Convert minutes to decimal hours, or HH:MM time to decimal hours (e.g. 90 min → 1.5, 1:30 → 1.5).
Momentum Calculator
Calculate momentum from mass and velocity: p = mv. Enter mass and velocity to get momentum.
Pressure Calculator
Calculate pressure from force and area: P = F/A. Enter force and area to get pressure.
Roman Numeral Calculator
Convert numbers to Roman numerals and Roman numerals to numbers. Supports 1–3999.
Weight Calculator
Calculate weight from mass and gravitational acceleration: W = mg. Enter mass and g to get weight.
Avoirdupois Weight Converter
Convert between avoirdupois weight units: ounces (oz), pounds (lb), and optionally grains, stones.
Troy Weight Converter
Convert between troy weight units: troy ounces (oz t), troy pounds (lb t). Used for precious metals.
Fraction to Decimal and Mixed Number Converter
Convert a fraction to decimal or to mixed number form.
Decimal to Octal Converter
Convert a decimal integer to octal (base 8).
Octal to Decimal Converter
Convert an octal (base 8) number to decimal.
Molecular Weight Calculator
Calculate molecular weight from a simple chemical formula (e.g. H2O, NaCl).
Displacement Calculator (v₀, a, t)
Calculate displacement using s = v₀t + ½at² (initial velocity, acceleration, time).
Displacement Calculator (Constant Velocity)
Calculate displacement using s = v × t (constant velocity and time).
Hooke's Law Calculator
Calculate spring force F = kx (spring constant × displacement).
Uniform Acceleration Calculator
Calculate final velocity v = v₀ + at and displacement s = v₀t + ½at².
Velocity Calculator (v = v₀ + at)
Calculate final velocity from initial velocity, acceleration, and time.
Average Velocity Calculator
Calculate average velocity as total displacement divided by total time.
Grade to GPA Calculation
Convert letter grades to GPA (grade point average) using a standard scale.
Score to Letter Grade Calculator
Convert a score or points to a letter grade based on a percentage scale.
Test Grade Calculator
Calculate percentage grade from score and total (e.g. test score out of total points).
Random Number Generator
Generate a random number within a specified range (min and max inclusive).
Random Name Picker
Enter a list of names and pick one at random (e.g. for games or draws).
Statistics Calculator
Calculate mean, median, mode, and standard deviation from a list of numbers.
Date Arithmetic Calculator
Add or subtract days from a date to get a new date.
Time Duration Calculator
Calculate the duration between two times (e.g. start and end time).
Age Calculator
Calculate age in years (and optionally months/days) from birth date to today.
Day of Week Calculator
Find the day of the week for any date (e.g. Monday, Tuesday).
Hours Converter and Sum
Convert hours and minutes to decimal hours (e.g. 2h 30m → 2.5) or sum time in decimal form.
Hours and Minutes Calculator
Add or subtract hours and minutes (e.g. 2h 30m + 1h 45m).
Hours Minutes Seconds Calculator
Convert or sum time in H:M:S format (e.g. to decimal hours or add two durations).
Time Calculator
Add or subtract time (hours and minutes) in a simple way.
Inverse Trigonometric Functions (Graphs)
Explore inverse trig functions (arcsin, arccos, arctan): domain, range, and value at a number.
Trigonometric Ratios Calculator
Get sin, cos, and tan for any angle (degrees or radians).
Binary to Octal Converter
Convert binary numbers to octal in your browser. Enter binary digits (0 and 1), get octal result—free and client-side.
Binary to String Converter
Convert binary (0 and 1) to text string in your browser. Paste binary or type, get readable text—free and client-side.
Date to Roman Numerals
Convert a year or date to Roman numerals (e.g. 2024 → MMXXIV). Free and client-side in your browser.
Hex to Octal Converter
Convert hexadecimal numbers to octal in your browser. Enter hex (0-9, A-F), get octal result—free and client-side.
Octal to Binary Converter
Convert octal numbers to binary in your browser. Enter octal digits (0-7), get binary (0 and 1)—free and client-side.
Octal to Hex Converter
Convert octal numbers to hexadecimal in your browser. Enter octal (0-7), get hex (0-9, A-F)—free and client-side.
Roman Numerals Converter
Convert between Roman numerals and numbers (1–3999) in your browser. Enter Roman (e.g. MMXXIV) or a number—free and client-side.
String to Binary Converter
Convert text to binary (0 and 1) in your browser. Type or paste text, get binary representation—free and client-side.
Roman Numerals Date Converter
Convert Roman numeral years to numbers (e.g. MMXXIV → 2024). Enter Roman numerals, get the year—free and client-side.
Acres to Square Feet Converter
Convert between acres and square feet. 1 acre = 43,560 sq ft. Bidirectional converter. Client-side only.
Angle Converter
Convert between degrees, radians, and gradians. Enter an angle in one unit and see the equivalent in the others. Client-side only.
Celsius to Kelvin Converter
Convert between Celsius and Kelvin. K = °C + 273.15. Bidirectional, client-side only.
Computer Storage Converter
Convert between bytes, KB, MB, GB, TB, and PB. Use binary (1024) or decimal (1000) units. Client-side only.
Decimal Degrees to Degrees Minutes Seconds
Convert between decimal degrees and DMS (degrees °, minutes ', seconds "). Used for coordinates. Client-side only.
Cooking Calculator
Convert between cooking volumes: cups, tablespoons, teaspoons, fluid ounces, and milliliters. Client-side only.
Digits to Words Converter
Convert numbers to words in English. Type a number and get its spelling (e.g. 1 → one, 42 → forty-two). Client-side only.
Distance Calculator
Convert between meters, kilometers, miles, feet, yards, and inches. Common length and distance units. Client-side only.
Energy Calculator
Convert between joules (J), kilowatt-hours (kWh), calories (cal), and BTU. Common energy units. Client-side only.
Fahrenheit to Kelvin Converter
Convert between Fahrenheit and Kelvin. K = (°F − 32) × 5/9 + 273.15. Bidirectional, client-side only.
Height CM to Feet and Inches
Convert height from centimeters to feet and inches (e.g. 170 cm = 5 ft 7 in). Client-side only.
Height Feet and Inches to CM
Convert height from feet and inches to centimeters. Enter ft and in, get cm. Client-side only.
Height Ft Cm Converter
Convert height between feet+inches and centimeters. Combined bidirectional converter. Client-side only.
Hours to Minutes Converter
Convert hours to minutes. Enter hours (decimal or whole), get minutes. Client-side only.
Kelvin to Celsius Converter
Convert between Kelvin and Celsius. °C = K − 273.15. Bidirectional, client-side only.
Kelvin to Fahrenheit Converter
Convert between Kelvin and Fahrenheit. °F = (K − 273.15) × 9/5 + 32. Bidirectional, client-side only.
Metric Units Converter
Convert common metric prefixes and units: length (m, km, mm), mass (g, kg), and prefixes (kilo, milli, etc.). Client-side only.
Minutes to Hours Converter
Convert minutes to hours. Enter minutes, get hours (decimal). Client-side only.
Numbers to Words
Convert a number to English words (e.g. 1234 → one thousand two hundred thirty-four). Client-side only.
Power Unit Converter
Convert between power units: watts (W), kilowatts (kW), horsepower (hp), and more. Client-side only.
Square Feet to Acres Converter
Convert between square feet and acres. 1 acre = 43,560 sq ft. Bidirectional, client-side only.
Square Feet to Square Meters Converter
Convert between square feet and square meters. 1 sq ft ≈ 0.092903 sq m. Bidirectional, client-side only.
Square Meters to Square Feet Converter
Convert between square meters and square feet. 1 sq m ≈ 10.764 sq ft. Bidirectional, client-side only.
Time Calculator
Add or subtract time (hours, minutes, seconds) and convert between time formats. Client-side only.
Custom Unit Converter
Generic two-unit converter: enter a factor and optional offset (result = value × factor + offset). Client-side only.
RGB to Grayscale Converter
Convert RGB values to grayscale using standard luminance formula (no image upload). Client-side only.
CM to KM Converter
Convert centimeters to kilometers. 1 km = 100,000 cm. Client-side only.
CM to Meter Converter
Convert centimeters to meters. 1 m = 100 cm. Client-side only.
CM to Mile Converter
Convert centimeters to miles. 1 mile ≈ 160,934.4 cm. Client-side only.
CM to MM Converter
Convert centimeters to millimeters. 1 cm = 10 mm. Client-side only.
CM to Yard Converter
Convert centimeters to yards. 1 yard = 91.44 cm. Client-side only.
Feet and Inches to CM
Convert height or length from feet and inches to centimeters. Enter ft and in, get cm. Client-side only.
Feet and Inches to Feet
Convert feet and inches to decimal feet. Enter ft and in, get total feet (e.g. 5 ft 6 in = 5.5 ft). Client-side only.
Feet and Inches to Inches
Convert feet and inches to total inches. Enter ft and in, get total inches (e.g. 5 ft 7 in = 67 in). Client-side only.
Feet and Inches to Meter
Convert feet and inches to meters. Enter ft and in, get meters. 1 in = 0.0254 m. Client-side only.
Feet and Inches to MM
Convert feet and inches to millimeters. Enter ft and in, get mm. 1 in = 25.4 mm. Client-side only.
Feet to Feet and Inches
Convert decimal feet to feet and inches (e.g. 5.5 ft → 5 ft 6 in). Client-side only.
Feet to Inch Converter
Convert feet to inches. 1 ft = 12 in. Client-side only.
Feet to Mile Converter
Convert feet to miles. 1 mi = 5280 ft. Client-side only.
Feet to MM Converter
Convert feet to millimeters. 1 ft = 304.8 mm. Client-side only.
Feet to Yard Converter
Convert feet to yards. 1 yd = 3 ft. Client-side only.
Inch to CM Converter
Convert inches to centimeters. 1 in = 2.54 cm. Client-side only.
Inch to Feet Converter
Convert inches to feet. 1 ft = 12 in. Client-side only.
Inch to Feet and Inches
Convert inches to feet and inches (e.g. 18 in → 1 ft 6 in). Client-side only.
Inch to KM Converter
Convert inches to kilometers. 1 in = 0.0254 m, 1 km = 1000 m. Client-side only.
Inch to Meter Converter
Convert inches to meters. 1 in = 0.0254 m. Client-side only.
Inch to Mile Converter
Convert inches to miles. 1 mi = 5280 ft = 63360 in. Client-side only.
Inch to MM Converter
Convert inches to millimeters. 1 in = 25.4 mm. Client-side only.
Inch to Yard Converter
Convert inches to yards. 1 yd = 36 in. Client-side only.
KM to CM Converter
Convert kilometers to centimeters. 1 km = 1000 m, 1 m = 100 cm. Client-side only.
KM to Inch Converter
Convert kilometers to inches. 1 km = 1000 m, 1 m ≈ 39.37 in. Client-side only.
KM to Meter Converter
Convert kilometers to meters. 1 km = 1000 m. Client-side only.
KM to MM Converter
Convert kilometers to millimeters. 1 km = 1000 m, 1 m = 1000 mm. Client-side only.
KM to Yard Converter
Convert kilometers to yards. 1 km = 1000 m, 1 yd = 0.9144 m. Client-side only.
Meter to CM Converter
Convert meters to centimeters. 1 m = 100 cm. Client-side only.
Meter to Feet Converter
Convert meters to feet. 1 ft = 0.3048 m. Client-side only.
Meter to Feet and Inches
Convert meters to feet and inches (e.g. 1 m → 3 ft 3.37 in). Client-side only.
Meter to Inch Converter
Convert meters to inches. 1 in = 0.0254 m. Client-side only.
Meter to KM Converter
Convert meters to kilometers. 1 km = 1000 m. Client-side only.
Meter to Mile Converter
Convert meters to miles. 1 mi = 1609.344 m. Client-side only.
Meter to MM Converter
Convert meters to millimeters. 1 m = 1000 mm. Client-side only.
Meter to Yard Converter
Convert meters to yards. 1 yd = 0.9144 m. Client-side only.
Mile to CM Converter
Convert miles to centimeters. 1 mi = 160,934.4 cm. Client-side only.
Mile to Feet Converter
Convert miles to feet. 1 mi = 5,280 ft. Client-side only.
Mile to Inch Converter
Convert miles to inches. 1 mi = 63,360 in. Client-side only.
Mile to Meter Converter
Convert miles to meters. 1 mi = 1,609.344 m. Client-side only.
Mile to MM Converter
Convert miles to millimeters. 1 mi = 1,609,344 mm. Client-side only.
Mile to Yard Converter
Convert miles to yards. 1 mi = 1,760 yd. Client-side only.
MM to CM Converter
Convert millimeters to centimeters. 10 mm = 1 cm. Client-side only.
MM to Feet Converter
Convert millimeters to feet. 304.8 mm = 1 ft. Client-side only.
MM to Feet and Inches
Convert millimeters to feet and inches (X ft Y in). 304.8 mm = 1 ft, 12 in = 1 ft. Client-side only.
MM to Inch Converter
Convert millimeters to inches. 25.4 mm = 1 in. Client-side only.
MM to KM Converter
Convert millimeters to kilometers. 1,000,000 mm = 1 km. Client-side only.
MM to Meter Converter
Convert millimeters to meters. 1000 mm = 1 m. Client-side only.
MM to Mile Converter
Convert millimeters to miles. 1,609,344 mm = 1 mi. Client-side only.
MM to Yard Converter
Convert millimeters to yards. 914.4 mm = 1 yd. Client-side only.
Yard to CM Converter
Convert yards to centimeters. 1 yd = 91.44 cm. Client-side only.
Yard to Feet Converter
Convert yards to feet. 1 yd = 3 ft. Client-side only.
Yard to Inch Converter
Convert yards to inches. 1 yd = 36 in. Client-side only.
Yard to KM Converter
Convert yards to kilometers. 1 yd = 0.0009144 km. Client-side only.
Yard to Meter Converter
Convert yards to meters. 1 yd = 0.9144 m. Client-side only.
Yard to Mile Converter
Convert yards to miles. 1,760 yd = 1 mi. Client-side only.
Yard to MM Converter
Convert yards to millimeters. 1 yd = 914.4 mm. Client-side only.
Number Base Converter
Convert numbers between bases: binary (2), octal (8), decimal (10), and hexadecimal (16). Client-side only.
Decimal to Other Base Converter
Convert decimal numbers to or from binary, octal, and hexadecimal. Client-side only.
Hex to Other Base Converter
Convert hexadecimal numbers to or from binary, octal, and decimal. Client-side only.
PPM to Percent Converter
Convert between parts per million (ppm) and percent. 1% = 10,000 ppm. Client-side only.
Percent to Decimal and Fraction Converter
Convert percent to decimal or fraction and vice versa. Client-side only.
ASCII Hex Binary Decimal Converter
Convert between ASCII characters and their numeric codes in hex, binary, and decimal. Character ↔ code conversion.
Base Converter (2–36)
Convert numbers between any bases from 2 to 36. Generic radix conversion for binary, decimal, hex, and more.
Binary Converter (Binary ↔ Decimal, Hex)
Convert between binary, decimal, and hexadecimal. Binary to decimal, binary to hex, and vice versa.
Degrees Minutes Seconds to Decimal Degrees
Convert coordinates from DMS (degrees °, minutes ', seconds ") to decimal degrees. Useful for GPS and mapping.
Decimal Degrees to Degrees Minutes Seconds
Convert decimal degrees to DMS (degrees °, minutes ', seconds "). Useful for GPS and mapping coordinates.
Hex Decimal Binary Converter
Convert between hexadecimal, decimal, and binary numbers. All three formats in one tool.
PPM to PPT Converter (Parts Per Million to Parts Per Trillion)
Convert between parts per million (ppm) and parts per trillion (ppt). 1 ppm = 1,000,000 ppt.
Gram to Kg Converter
Convert grams to kilograms. 1 kg = 1000 g. Simple mass conversion.
Gram to Mg Converter
Convert grams to milligrams. 1 g = 1000 mg. Simple mass conversion.
Gram to Ounce Converter
Convert grams to ounces (avoirdupois). 1 oz ≈ 28.35 g. Mass conversion.
Gram to Pound Converter
Convert grams to pounds (avoirdupois). 1 lb ≈ 453.6 g. Mass conversion.
Kg to Gram Converter
Convert kilograms to grams. 1 kg = 1000 g. Simple mass conversion.
Kg to Mg Converter
Convert kilograms to milligrams. 1 kg = 1,000,000 mg. Mass conversion.
Kg to Ounce Converter
Convert kilograms to ounces (avoirdupois). 1 kg ≈ 35.27 oz (1 oz ≈ 28.35 g). Mass conversion.
Kg to Pound Converter
Convert kilograms to pounds (avoirdupois). 1 kg ≈ 2.205 lb (1 lb ≈ 453.6 g). Mass conversion.
Kg to Ton Converter
Convert kilograms to metric tons. 1 ton = 1000 kg. Mass conversion.
Mcg to Mg Converter (Micrograms to Milligrams)
Convert micrograms (mcg or μg) to milligrams (mg). 1 mg = 1000 mcg. Mass conversion.
Mg to Gram Converter
Convert milligrams to grams. 1 g = 1000 mg. Simple mass conversion.
Mg to Kg Converter
Convert milligrams to kilograms. 1 kg = 1,000,000 mg. Mass conversion.
Mg to Mcg Converter (Milligrams to Micrograms)
Convert milligrams (mg) to micrograms (mcg or μg). 1 mg = 1000 mcg. Mass conversion.
Ounce to Gram Converter
Convert ounces (avoirdupois) to grams. 1 oz ≈ 28.35 g. Mass conversion.
Ounce to Kg Converter
Convert ounces (avoirdupois) to kilograms. 1 oz ≈ 0.02835 kg. Mass conversion.
Ounce to Pound Converter
Convert ounces to pounds (avoirdupois). 1 lb = 16 oz. Mass conversion.
Pound and Ounce to Kg Converter
Convert pounds and ounces to kilograms. Enter lb + oz to get kg. 1 lb = 16 oz, 1 lb ≈ 0.4536 kg.
Pound to Gram Converter
Convert pounds (avoirdupois) to grams. 1 lb ≈ 453.6 g. Mass conversion.
Pound to Kg Converter
Convert pounds (avoirdupois) to kilograms. 1 lb ≈ 0.4536 kg. Mass conversion.
Pound to Ounce Converter
Convert pounds to ounces (avoirdupois). 1 lb = 16 oz. Mass conversion.
Pound to Stone Converter
Convert pounds to stone (UK). 1 stone = 14 lb. Mass conversion.
Pound to Ton Converter
Convert pounds to US short tons. 1 short ton = 2000 lb. Mass conversion.
Stone to Pound Converter
Convert stone (UK) to pounds. 1 stone = 14 lb. Mass conversion.
Ton to Kg Converter
Convert US short tons to kilograms. 1 short ton ≈ 907.185 kg. Mass conversion.
Ton to Pound Converter
Convert US short tons to pounds. 1 short ton = 2000 lb. Mass conversion.
SEO Tools
View all →Meta Description Generator
Generate SEO meta descriptions for your pages. Optimize length and keywords for search results.
UTM Builder
Build UTM-tagged URLs for campaign tracking. Add source, medium, campaign, term, and content parameters.
Google SERP Preview Optimization Tool
Preview how your title and meta description will appear in Google search results (~60 / ~160 chars).
Keyword Density Checker
Check keyword density: enter text and a keyword to see count, occurrences, and density (count/total words × 100).
Open Graph Generator
Generate Open Graph meta tags (og:title, og:description, og:image, etc.) as HTML or JSON.
Robots.txt Generator
Generate robots.txt content for your domain. Set User-agent rules and Allow/Disallow paths for search engine crawlers.
Twitter Card Generator
Generate Twitter Card meta tags from title, description, and image URL. Copy HTML for rich previews on Twitter/X.
AdSense Calculator
Estimate Google AdSense revenue from page views, CTR %, and CPC. Get a quick earnings projection.
CPC Calculator
Calculate cost per click (CPC) from total cost and clicks, or total cost from CPC and clicks.
CPM Calculator
Calculate CPM (cost per mille) from cost and impressions (in thousands), or cost from CPM and impressions.
.htaccess Redirect Generator
Generate Apache .htaccess redirect rules from old URL and new URL. Choose 301 (permanent) or 302 (temporary).
Link Extractor
Paste HTML or plain text and extract all URLs. Uses regex to find http/https links and lists them.
Meta Tags Analyzer
Paste HTML and find all meta tags. Displays name and content (or property and content) for analysis.
Canonical URL Link Generator
Enter a URL and get the canonical link tag HTML: <link rel="canonical" href="..." /> for SEO.
.htaccess Redirect
Generate Apache .htaccess redirect rules: enter old URL, new URL, and choose 301 or 302.
Screen Resolution Statistics
View common screen resolutions or add your own width × height to build a list. No fetch—client-side only.
HTTP Header Checker
Paste raw HTTP response headers (text) and parse key headers. No fetch—paste headers to analyze.
HTTP Status Checker
Enter an HTTP status code (200, 404, etc.) and see its meaning and description. Static lookup—no fetch.
Screen Resolution
Enter width × height to get aspect ratio and common name (e.g. Full HD, 4K) if applicable.
Screen Resolution Simulator
Enter width and height in pixels to see a box preview at that size. Visual dimension preview.
Screen Resolution Tester
Enter width and height to see a visual preview box at that dimension. Same idea: input dimensions → preview.
Keyword Difficulty Checker
Get a simple client-side keyword difficulty score based on word count and length. Enter a keyword for an estimated difficulty (no API).
Open Graph Tags
Generate Open Graph meta tags for social sharing. Enter title, description, and image URL—copy the tags for your site.
Open Graph Meta Generator
Generate Open Graph and Twitter Card meta tags from title, description, and image. Copy the generated HTML for your page head.
Open Graph Preview & Metatags Generator
Generate Open Graph and Twitter Card meta tags and see a simple preview of how your link may look when shared. Client-side only.
Search Domain Name Checker
Check domain name format and get a placeholder availability note. Enter a domain to validate format—real availability requires a registrar lookup.
Tag Generator
Generate HTML meta tags and common head tags from your inputs. Title, description, keywords—copy the generated tags for your page.
URL Rewrite Generator
Generate URL rewrite rules for clean URLs. Enter pattern and target to get Apache or Nginx-style rewrite snippets.
HTML Redirect
Generate HTML meta refresh redirect code. Enter target URL and optional delay to get a snippet for your page.
jQuery Redirect
Generate jQuery redirect code. Enter target URL to get a script snippet using window.location or jQuery for redirects.
HTML Redirect Test
Generate a test page that uses HTML meta refresh to redirect. Enter URL and delay to get a full HTML snippet you can save and test.
JavaScript Redirect Test
Generate a test page that uses JavaScript to redirect. Enter target URL to get a full HTML page with inline script for testing redirects.
jQuery Redirect Test
Generate a test page that uses jQuery to redirect. Enter target URL to get a full HTML page with jQuery redirect script for testing.
URL Redirect
Generate URL redirect code in multiple formats: HTML meta refresh, JavaScript, or snippet. Enter source and target URL.
Website Traffic Down
Checklist and common causes when your website traffic drops. Use this SEO diagnostic to identify possible reasons and next steps.
Redirect Generator
Generate redirect code from source URL to target URL. Choose HTML meta refresh, JavaScript, or Apache .htaccess style and copy the snippet.
Window Size
Display your current browser window size (width and height) in pixels. Useful for responsive design and breakpoint testing. Copy dimensions with one click.
Image Tools
View all →Image Color Picker
Upload an image and click on it to get the color at that point (hex and RGB).
JPG to PNG Converter
Convert JPG/JPEG images to PNG format in your browser. No upload to server.
PNG to JPG Converter
Convert PNG images to JPG/JPEG format in your browser. No upload to server.
Favicon Generator
Upload an image to preview 16×16 and 32×32 favicon sizes. Download for your site.
Image Resizer
Resize images by width, height, or scale percentage. Download resized images instantly.
ICO Converter
Convert an image file to ICO format (favicon). Upload any image to get a downloadable .ico file.
Image Cropper
Upload an image and crop by specifying dimensions or using a simple crop area. Output as PNG.
Image Filters
Apply grayscale, sepia, or brightness filters to an image. Preview and download the result.
Image to Base64 Converter
Convert an image file to a Base64 data URL using FileReader. No upload—all in browser.
JPG to WebP Converter
Convert JPG/JPEG images to WebP format in the browser using canvas. Download the result.
PNG to SVG Converter
Embed a PNG image inside an SVG wrapper (data URL). Note: this is not true vectorization—use for simple embedding.
PNG to WebP Converter
Convert PNG images to WebP format in the browser. Download the result.
SVG to PNG Converter
Convert SVG (string or file) to PNG by drawing on canvas. Download the result.
WebP to JPG Converter
Convert WebP images to JPG/JPEG in the browser. Download the result.
WebP to PNG Converter
Convert WebP images to PNG in the browser. Download the result; transparency is preserved.
PNG to ICO Converter
Convert PNG images to ICO format (multi-size when possible) for favicons and Windows icons.
AVIF to JPG Converter
Convert AVIF images to JPG in the browser. Upload a file and download the result.
BMP to JPG Converter
Convert BMP images to JPG in the browser. Upload a file and download the result.
GIF to JPG Converter
Convert GIF images to JPG in the browser. Upload a file and download the result. Only the first frame is used for animated GIFs.
GIF to PNG Converter
Convert GIF images to PNG in the browser. Upload a file and download the result. Transparency is preserved.
JPG to BMP Converter
Convert JPG images to BMP in the browser. Upload a file and download the result.
JPG to GIF Converter
Convert JPG images to GIF in the browser. Upload a file and download a single-frame GIF.
GIF to AVIF Converter
Convert GIF images to AVIF in the browser. Upload a file and download the result. Only the first frame is used for animated GIFs.
JPG to AVIF Converter
Convert JPG images to AVIF in the browser. Upload a file and download the result.
PNG to AVIF Converter
Convert PNG images to AVIF in the browser. Upload a file and download the result.
WebP to AVIF Converter
Convert WebP images to AVIF in the browser. Upload a file and download the result.
WebP to GIF Converter
Convert WebP images to GIF in the browser. Upload a file and download a single-frame GIF.
SVG Blob Generator
Generate random organic blob shapes as SVG path data. Use for avatars, decorations, or design placeholders.
SVG Pattern Generator
Generate SVG pattern markup (dots, lines, grid, crosses) for use as backgrounds or fills.
Font to PNG Converter
Render text as PNG with chosen font family and size using canvas (toDataURL).
JPG to TIFF Converter
Upload a JPG and get a PNG export (browser TIFF export is not widely supported; download as PNG fallback).
PNG to EPS Converter
PNG to vector: browsers cannot create EPS. Get an SVG alternative with copy, or a note on converting with a desktop app.
PNG to TIFF Converter
Upload a PNG; browser TIFF encoding is not widely supported. Download as PNG fallback.
TIFF to JPG Converter
Upload a TIFF file. Many browsers cannot decode TIFF; we show a message and placeholder. For full conversion use a server or desktop app.
TIFF to PNG Converter
Upload a TIFF file. Browser TIFF decode is often unsupported; we show a message and placeholder. For full conversion use a desktop app.
TIFF to SVG Converter
TIFF to SVG typically requires a raster path. Upload a TIFF; we show a note and placeholder. For conversion use a desktop or server tool.
SVG Stroke to Fill Converter
Convert SVG stroke paths to fill paths. Paste SVG or upload a file and get instructions or a basic path transform.
PNG to GIF Converter
Upload PNG images to create an animated GIF placeholder. Client-side only—combine frames into a simple animation or download a static GIF.
GIF Tool
View GIF info and preview. Upload a GIF to see dimensions, frame count (if detectable), and file size—client-side only.
JPG Tool
View JPG/JPEG info and preview. Upload an image to see dimensions, file size, and a preview—client-side only.
PNG Tool
View PNG info and preview. Upload a PNG to see dimensions, file size, and a preview—client-side only.
SVG Tool
View SVG info and preview. Paste SVG code or upload an SVG file to see dimensions and render—client-side only.
WebP Tool
View WebP info and preview. Upload a WebP image to see dimensions, file size, and a preview—client-side only.
Add Images
Combine multiple images into one. Upload two or more images and merge them side by side or stacked—client-side with canvas.
Border Tool
Add a border to your image. Upload an image, pick color and width, and download the result—client-side with canvas.
Chart Maker
Create a simple bar chart from your data. Enter labels and values, then view or download the chart as PNG—client-side with canvas.
Crop Circle
Crop an image to a circle. Upload an image and download it as a circular crop—client-side with canvas.
Flip Tool
Flip an image horizontally or vertically. Upload an image, choose flip direction, and download—client-side with canvas.
GIF to APNG Converter
Convert GIF images to APNG (Animated PNG) in your browser. Upload a GIF and download APNG—no server upload.
Grayscale Tool
Convert any image to grayscale (black and white) in your browser. Upload, preview, and download—client-side only.
JPG to SVG Converter
Embed a JPG image inside an SVG file in your browser. Upload a JPG and download as SVG (image embedded)—client-side only.
Image Metadata Tool
View image metadata in your browser—file name, size, type, and dimensions. No upload to server; all client-side.
Pixelate Tool
Pixelate or blur faces and areas in images in your browser. Upload an image, set pixel size, and download—client-side only.
Profile Photo Tool
Create a circular or square profile photo from any image in your browser. Upload, crop to shape, and download—client-side only.
Image Resize Tool
Resize images in your browser. Set width and height, keep aspect ratio optional, and download—client-side only.
Image Split Tool
Split an image into a grid of tiles in your browser. Choose rows and columns, then download each piece—client-side only.
Instagram Filters
Apply filter effects to images in your browser—vintage, grayscale, sepia, and more. Upload, choose filter, download—client-side only.
JPEG to SVG Converter
Embed a JPEG image inside an SVG file in your browser. Upload a JPEG and download as SVG (image embedded)—client-side only.
SVG Converter
Convert SVG to PNG or embed an image in SVG in your browser. Upload SVG or image, choose output format, download—client-side only.
Fun & Viral
View all →Password Generator
Generate a random password with length and options for uppercase, numbers, and symbols.
Strong Random Password Generator
Generate a strong random password with length and options for uppercase, numbers, and symbols.
Color Mixer
Blend two hex colors with a mix ratio (0–100%) to get the resulting hex color (linear RGB blend).
Color Shades Generator
Generate lighter and darker shades from one hex color. Output as hex list or swatches.
Convert Color CMYK to RGB
Convert CMYK color values (0–100% or 0–1) to RGB using standard conversion formula.
Convert Color HSL to RGB
Convert HSL color (H 0–360, S and L 0–100%) to RGB values using client-side formula.
Convert Color RGB to CMYK
Convert RGB color values to CMYK (0–100%) for print. Client-side conversion.
Convert Color RGB to HSL
Convert RGB color values (0–255) to HSL (H 0–360, S and L 0–100%). Client-side formula.
RGBA to Hex Converter
Convert RGBA (R,G,B 0–255, A 0–1) to hex: #RRGGBB or #RRGGBBAA.
Color Wheel
Pick hue from a color wheel and set saturation and lightness to get the resulting hex color.
Business Name Generator
Generate random business names using adjective + noun + suffix combinations.
Fake Name Generator
Generate random full names (first name + last name) for testing or placeholders.
List Randomizer
Paste a list (one item per line or comma-separated) and get a shuffled order.
Random Word Generator
Generate N random words from a built-in list. Useful for ideas, placeholders, or games.
Image Color Extractor
Upload an image to extract dominant and main colors. Uses canvas getImageData to sample pixels and show hex values.
Acronym Generator
Generate an acronym from a phrase (e.g. World Health Organization → WHO). Takes the first letter of each word.
Book Title Generator
Generate random book-style titles from adjective + noun + of + noun (e.g. The Silent Garden of Shadows).
Citation Generator
Generate citations in APA or MLA format for books and web sources. Fill in fields and copy the result.
Essay Title Generator
Get suggested essay titles from a topic or keywords. Generates multiple title ideas for your essay.
Slogan Generator
Generate random slogan ideas from a company or product name and optional keywords.
Title Generator
Generate random title ideas for blogs, videos, or articles from a topic or keywords.
Fake Address Generator
Generate random fake addresses including street, city, zip, and country for testing or placeholders.
Random String Generator
Generate a random string by length and character set: alphanumeric, letters only, numbers only, or custom.
Tweet Generator
Generate short tweet-style text (under 280 characters) from a topic or template.
Convert CMYK to Pantone PMS
Convert CMYK values to the nearest Pantone PMS color suggestion (approximate match).
Convert Hex to Pantone PMS
Convert hex color codes to the nearest Pantone PMS suggestion (approximate match).
Convert HSV to Pantone PMS
Convert HSV color values to the nearest Pantone PMS suggestion (approximate match).
Convert RGB to Pantone PMS
Convert RGB values to the nearest Pantone PMS suggestion (approximate match).
Convert Color HSV to RGB
Convert between HSV and RGB color values (H 0–360°, S/V 0–100%; R,G,B 0–255).
Convert Color RGB to HSV
Convert between RGB and HSV color values (R,G,B 0–255; H 0–360°, S/V 0–100%).
Image Average Color Finder
Upload or paste an image to compute its average color using canvas (client-side).
Fake IBAN Generator
Generate valid-format (checksum) fake IBANs for selected countries. For testing only.
Instagram Story Generator
Create a story template with text and background for 1080×1920 dimensions; export as image or data URL.
Tweet to Image Converter
Turn tweet text into a tweet-style card image (client-side canvas or data URL).
Twitter Ad Revenue Calculator
Estimate ad revenue from impressions and CPM (cost per thousand impressions).
Vimeo Thumbnail URL Grabber
Extract Vimeo video ID from a URL and show the thumbnail URL pattern (no fetch, client-side only).
Gold Color
View gold color swatch with hex and RGB values. Copy codes for design and web use.
RGB to Color
Enter RGB values (0–255) to see a color swatch and get the hex code. Copy hex for CSS and design.
Web-Safe Colors
View the 216 web-safe color palette. Click a swatch to copy its hex code. Works on all displays.
Yellow Color
View yellow color swatch with hex and RGB values. Copy codes for design and web use.
Beige Color
View beige color swatch with hex and RGB values. Copy codes for design and web use.
Black Color
View black color swatch with hex and RGB values. Copy codes for design and web use.
Blue Color
View blue color swatch with hex and RGB values. Copy codes for design and web use.
Brown Color
View brown color swatch with hex and RGB values. Copy codes for design and web use.
Color Scheme Generator
Generate complementary or triad color schemes from a base color. Get hex codes for harmonious palettes.
Background Foreground Color Tester
Test how two colors look together. Set background and foreground (text) colors and see a live preview with sample text.
Cyan Color
View cyan color swatch with hex and RGB values. Copy codes for design and web use.
Gray Color
View gray color swatch with hex and RGB values. Copy codes for design and web use.
Green Color
View green color swatch with hex and RGB values. Copy codes for design and web use.
HTML Color Codes
Reference list of standard HTML color names and their hex codes. Copy any code for use in CSS or HTML.
Ivory Color
View ivory color swatch with hex and RGB values. Copy codes for design and web use.
Lavender Color
View lavender color swatch with hex and RGB values. Copy codes for design and web use.
Magenta Color
View magenta color swatch with hex and RGB values. Copy codes for design and web use.
Maroon Color
View maroon color swatch with hex and RGB values. Copy codes for design and web use.
Orange Color
View orange color swatch with hex and RGB values. Copy codes for design and web use.
Peach Color
View peach color swatch with hex and RGB values. Copy codes for design and web use.
Pink Color
View pink color swatch with hex and RGB values. Copy codes for design and web use.
Purple Color
View purple color swatch with hex and RGB values. Copy codes for design and web use.
Red Color
View red color swatch with hex and RGB values. Copy codes for design and web use.
Silver Color
View silver color swatch with hex and RGB values. Copy codes for design and web use.
Tan Color
View tan color swatch with hex and RGB values. Copy codes for design and web use.
Teal Color
View teal color swatch with hex and RGB values. Copy codes for design and web use.
Turquoise Color
View turquoise color swatch with hex and RGB values. Copy codes for design and web use.
White Color
View white color swatch with hex and RGB values. Copy codes for design and web use.
HTML Link Color
Preview and copy HTML link color codes. Set link, visited, and hover colors for CSS or inline styles.
Instagram Post Generator
Draft Instagram post text with caption, hashtags, and line breaks. Preview how it will look and copy for pasting into Instagram.
Plot Generator
Generate a short story plot from a few prompts: character, setting, conflict. Client-side only—no account needed.
URL Opener
Enter a URL and open it in a new tab. Handy for quick links, testing, or copying a clean link to share.