Online Change Text Alphabet
Transform text using character mapping: ROT13, reverse alphabet (A↔Z), or custom substitution. Client-side only.
Frequently Asked Questions
- What is ROT13?
- Each letter is shifted by 13 positions (A→N, B→O, etc.). Applying ROT13 twice returns the original. Often used to hide spoilers.
- What is reverse alphabet?
- A↔Z, B↔Y, C↔X, etc. Simple substitution cipher.
- Can I use a custom map?
- Yes. Enter two lines: first line = original letters, second line = replacement letters (same length). Only those characters are transformed.
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