Caesar Cipher Tool

Encrypt or decrypt English alphabetic text with a configurable Caesar shift while preserving numbers and punctuation.

This tool has been used 43 times

Shift value Input

Result

Your result will appear here.

Processing happens locally in your browser.

How to use this tool

Enter the text, choose a shift from 0 to 25, then select Encrypt or Decrypt. Copy the transformed result. This classic cipher is educational and not secure encryption.