ROT13 Cipher

Encode and decode text using ROT13 cipher

Privacy Protected
Offline Processing
Instant Results
Text Input
Enter a number between 1-25. ROT13 uses 13.

About ROT13/Caesar Cipher:

  • • ROT13 is a special case of Caesar cipher with shift 13
  • • Only affects letters (A-Z, a-z), preserves other characters
  • • ROT13 is self-reciprocal: encoding twice returns original
  • • Used for simple text obfuscation, not security
Cipher Result
About This Tool

Encode and decode text using ROT13 cipher

Privacy & Security

  • • All file processing happens locally in your browser
  • • Your files never leave your device or get uploaded to any server
  • • No data collection, tracking, or storage of your files
  • • Works completely offline once the page is loaded

Keywords

rot13cipherencodedecode