Atbash Cipher
Apply the Atbash mirror cipher — A↔Z, B↔Y — the ancient Hebrew substitution cipher.
Runs locally in your browser. Your input is not uploaded.
How to Use
- 1
Type or paste text
Plain or Atbash-encoded — the operation is identical.
- 2
Read the mirrored result
Every letter is swapped with its alphabet mirror.
- 3
Copy the output
Run it through again to get back the original.
Frequently Asked Questions
- A substitution cipher that maps each letter to its mirror in the alphabet — A↔Z, B↔Y, C↔X. It originated with the Hebrew alphabet around 500 BCE and appears in the Book of Jeremiah.
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