Caesar Cipher
Encode or decode text using the Caesar cipher with customizable shift value.
Your text stays in your browser. We don't upload or store your data.
How to Use
- 1Enter text.
- 2Set shift value.
- 3Click Encode or Decode.
What is Caesar Cipher?
Caesar Cipher shifts each letter by a fixed number of positions in the alphabet. A shift of 3 turns A into D, B into E, etc.
Key Features
- Customizable shift (0-25)
- Encode and decode
- Preserves non-letters
- Case-preserving
- 100% client-side
FAQ
What is Caesar Cipher?
Caesar Cipher is one of the oldest encryption techniques, named after Julius Caesar who used it for private communication. Each letter is shifted by a fixed number of positions.
Is it secure?
No. Caesar Cipher is trivially easy to break with only 26 possible shifts. It is mainly used for educational purposes and simple puzzles.