Cipher Decoder

Decode classic ciphers including ROT13, Caesar, Vigenère, Atbash, and Rail Fence.

Input Text

Cipher Type

Result

Cipher Reference

  • ROT13: Rotates letters by 13 positions
  • Caesar: Shifts letters by a fixed number (1-25)
  • Vigenère: Polyalphabetic cipher using a keyword
  • Atbash: Reverses the alphabet (A↔Z, B↔Y)
  • Rail Fence: Zigzag transposition cipher