Encode and decode text using the ROT13 Caesar cipher. ROT13 replaces each letter with the letter 13 positions after it in the alphabet.
ROT13 is a simple letter substitution cipher that replaces each letter with the letter 13 positions after it in the alphabet. It's its own inverse - applying ROT13 twice returns the original text.
No, ROT13 is not encryption. It's an obfuscation technique used to hide spoilers, puzzle answers, or offensive content. It provides no security.
No, ROT13 only affects letters (A-Z, a-z). Numbers, spaces, punctuation, and other characters remain unchanged.