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 …

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 …

This is a complete guide to the Atbash cipher and the tool you need to decode it. From the very earliest days of encryption, people have been using the Atbash cipher to hide the meaning of their text.

Free online Atbash cipher tool for encoding and decoding text using the ancient Hebrew substitution cipher. Educational, secure, and completely free.

Free online Atbash cipher tool for encrypting and decrypting text using the ancient Hebrew substitution cipher. Simple A-Z reverse alphabet encryption with instant results.

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 …

The Atbash cipher represents one of humanity's earliest encryption methods, demonstrating that the need for secure communication has existed for millennia. Its appearance in biblical texts shows that …

6 days ago · Basically, when encoded, an "A" becomes a "Z", "B" turns into "Y", etc. The Atbash cipher can be implemented as an Affine cipher by setting both a and b to 25 (the alphabet length minus 1). …

Jul 23, 2025 · Definition: Atbash cipher is a substitution cipher with just one specific key where all the letters are reversed that is A to Z and Z to A. It was originally used to encode the Hebrew alphabets …

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