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Atbash Cipher

Encode and decode text with the Atbash cipher.

Input
Output

Atbash maps A↔Z, B↔Y and so on. It is its own inverse, so the same operation encodes and decodes.

How to use

  1. Type or paste your text.
  2. The Atbash result appears instantly.
  3. Run it again to reverse.

Frequently asked questions

How does Atbash work?
Each letter is replaced with its mirror in the alphabet (A↔Z, B↔Y…).
Does it affect numbers?
No, only letters are transformed.

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