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ROT13 / Caesar Cipher

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

Text v1.0.0 54 uses
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. 1 Enter or paste the text you want to encode or decode
  2. 2 Select the rotation value (default is 13 for ROT13, or choose 1-25)
  3. 3 View the encoded or decoded output updated in real time
  4. 4 Copy the result to use in messages, puzzles, or code
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