ROT13 / Caesar Cipher

Encode or decode text with ROT13 or any Caesar cipher rotation (1-25 shifts).

Category: Text · v1.0.0
1 ROT13 25

About This Tool

This ROT13 and Caesar cipher tool lets you encode or decode text using letter-shift ciphers with customizable rotation values from 1 to 25. It is perfect for puzzle enthusiasts, students learning about cryptography, and developers who need quick text obfuscation. The tool processes text instantly and preserves non-alphabetic characters, making it easy to experiment with classical encryption techniques.

How to Use

  1. Enter or paste the text you want to encode or decode
  2. Select the rotation value (default is 13 for ROT13, or choose 1-25)
  3. View the encoded or decoded output updated in real time
  4. Copy the result to use in messages, puzzles, or code