Text Tools

Caesar Cipher

Encrypt and decrypt with the Caesar cipher — any shift value 1–25, plus brute-force decode.

About the Caesar Cipher

The Caesar Cipher shifts letters by a configurable amount — the oldest known cipher. Encode with any shift 1–25, decode with the negative shift, or brute-force all 25 possibilities when the shift is unknown.

Click "Try all shifts" — all 25 candidates are listed and the readable one jumps out immediately.