Atbash Cipher client-side ?
How to use Atbash CipherThe Atbash cipher is one of the oldest substitution ciphers: it reverses the alphabet, A becoming Z, B becoming Y, C becoming X, and so on. Because the operation is symmetric, encrypting and decrypting a message are exactly the same action. Paste your text to get the result instantly; digits and punctuation are left untouched. It's a historical, educational cipher, processed entirely in your browser.
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The Atbash cipher is one of the oldest substitution ciphers: it reverses the alphabet, A becoming Z, B becoming Y, C becoming X, and so on. Because the operation is symmetric, encrypting and decrypting a message are exactly the same action. Paste your text to get the result instantly; digits and punctuation are left untouched. It's a historical, educational cipher, processed entirely in your browser.
The Atbash cipher: A↔Z, B↔Y… alphabet reversal.
How to use Atbash Cipher
The Atbash cipher is one of the oldest substitution ciphers: it reverses the alphabet, A becoming Z, B becoming Y, C becoming X, and so on. Because the operation is symmetric, encrypting and decrypting a message are exactly the same action. Paste your text to get the result instantly; digits and punctuation are left untouched. It's a historical, educational cipher, processed entirely in your browser.
Frequently asked questions
How do I decrypt Atbash text?
Just apply Atbash again: since the cipher is its own inverse, running the ciphertext back through the tool returns the plaintext.
Is Atbash secure?
No. It's a fixed, keyless substitution that breaks in seconds. It's a cipher for fun and learning, not security.