The Atbash cipher (also called the mirror cipher or reverse alphabet) is a monoalphabetic substitution cipher in which each letter is replaced by its counterpart in the alphabet; thus, A becomes Z, B …

It is believed to be the first cipher ever used, and its use pre-dates Egyptian examples of encryption. To use Atbash, you simply reverse the alphabet, so A encodes to Z, B to Y and so on. Atbash is …

Atbash (Hebrew: אתבש; also transliterated Atbaš) is a monoalphabetic substitution cipher originally used to encrypt the Hebrew alphabet. It can be modified for use with any known writing system with a …

Jan 7, 2026 · A very simplistic cipher where you change A to Z, B to Y, and so on. The Atbash cipher is a very common and simple cipher that simply encodes a message with the reverse of the alphabet. …

Originally used to encode the hebrew alphabet, Atbash (אתבש‎‎) is formed by mapping an alphabet to its reverse, so that the first letter becomes the last letter. The Atbash cipher can be seen as a special …

What is Atbash? The Atbash cipher is a substitution cipher where each letter is replaced with its mirror letter from the reversed alphabet. It's like folding the alphabet in half and matching letters from …

1 day ago · Discover the Atbash cipher — a 2,500-year-old Hebrew substitution cipher that magically decodes itself. Learn how it works, why it's historically significant, and try it instantly with our free tool.

Learn how to encrypt and decrypt text using the Atbash Cipher, a simple yet powerful symmetric substitution cipher.

The Atbash cipher is one of the oldest known substitution ciphers, originally used for the Hebrew alphabet. It works by replacing each letter with its mirror image in the alphabet - the first letter …

The Atbash Cipher is a very old cipher used originally with the Hebrew alphabet. It reverses the alphabet as the ciphertext alphabet.