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Online Calculate Text Entropy

Compute character-frequency entropy (Shannon entropy) of text. Higher entropy often means more random or diverse characters.

Frequently Asked Questions

What is text entropy?
Entropy measures how evenly characters are distributed. High entropy: more variety and less predictable; low: repetitive or structured.
What are bits per character?
The result is in bits. Typical English text is around 4–5 bits per character; random text is higher (e.g. 8 for extended ASCII).
What is it used for?
Estimating randomness, comparing languages, or checking if data looks compressed or encoded.

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