ROT13 编码

ROT13 is a simple letter substitution cipher that replaces each letter with the letter 13 positions after it in the alphabet. Applying ROT13 twice returns the original text.

ROT13 only shifts letters (A-Z), while ROT47 shifts all printable ASCII characters (including numbers and symbols), providing slightly more obfuscation.

No, ROT13 is not encryption. It's a simple obfuscation technique suitable for hiding spoilers or puzzle answers, not for securing sensitive data.