ROT13 Encoder/Decoder
Encode and decode text using the ROT13 cipher. ROT13 is a simple letter substitution cipher.
About ROT13
ROT13 ("rotate by 13 places") is a simple letter substitution cipher that replaces a letter with the 13th letter after it in the alphabet.
Key features:
- Reversible: Encoding and decoding use the same function
- Only affects letters A-Z and a-z
- Numbers, symbols, and spaces remain unchanged
- Commonly used for simple text obfuscation
Examples
Encoding:
Hello World
→ Uryyb Jbeyq
Decoding:
Uryyb Jbeyq
→ Hello World