Text Tools
Caesar Cipher Encoder/Decoder
Enter text and a shift amount to encode or decode it with a classic Caesar cipher.
This is a classic educational cipher, not real encryption — anyone can break it by trying all 25 shifts.
How to use this tool
- 1Type or paste your text.
- 2Choose a shift amount.
- 3Read the shifted result, or shift the other direction to decode.
Frequently asked questions
Is a Caesar cipher secure?+
No — it's a simple historical cipher easily broken by trying all 25 shifts. Use it for puzzles and learning, not real security.