ROT13 Encoder/Decoder

What is 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. ROT13 is a special case of the Caesar cipher which was developed in ancient Rome.

Key Points About ROT13:

• Simple substitution cipher
• Rotates each letter by 13 places
• Applying ROT13 twice returns the original text
• Preserves letter case
• Ignores non-alphabetic characters

How ROT13 Conversion Works

ROT13 conversion is a simple process of shifting each letter in the text by 13 positions in the alphabet. Here's a brief overview:

1. Text to ROT13: Each letter is replaced by the letter 13 positions ahead in the alphabet
2. ROT13 to text: Each letter is replaced by the letter 13 positions behind in the alphabet
3. The alphabet wraps around, so 'A' becomes 'N', 'B' becomes 'O', and so on
4. Letter case is preserved, and non-alphabetic characters remain unchanged

This converter allows you to easily switch between text and its ROT13 representation, which is often used for hiding spoilers or puzzle answers.