Type your text, and the tool encodes it by mirroring each letter through the alphabet (A↔Z, B↔Y) with the Atbash cipher.
A substitution cipher where each letter is mapped to its mirror: A→Z, B→Y, ..., Z→A.
Yes — encoding and decoding use the exact same operation. Apply it twice to get the original.
Ancient Hebrew cryptography. 'Atbash' itself encodes the first and last Hebrew letters: Aleph-Tav-Bet-Shin.