Cipher Tools
Encrypt and decrypt text with Caesar, Vigenère, ROT13, and Atbash classical ciphers — with live alphabet preview
Caesar Cipher
Shifts each letter by a fixed number of positions in the alphabet
Substitution preview
| Plain: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Cipher: | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | A | B | C |
About classical ciphers
These are educational/recreational ciphers — they offer no real security and can be broken in seconds with frequency analysis or brute force. Use them for puzzles, escape rooms, or learning cryptography. For real security, use modern AES or other authenticated encryption.
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