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
- Type or paste your text.
- The Atbash result appears instantly.
- 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.