🔐 ROT13 Encoder / Decoder
Encode or decode text using ROT13 and ROT47 cipher. ROT13 shifts letters by 13, ROT47 shifts all printable ASCII by 47.
ROT13 and ROT47 Encoder
ROT13 replaces each letter with the 13th letter after it. ROT47 shifts all printable ASCII characters. Both are self-inverse ciphers.
Frequently Asked Questions
What is ROT13?
ROT13 replaces each letter with the 13th letter after it. Applying it twice returns the original, making it its own inverse.
What is ROT47?
ROT47 shifts all 94 printable ASCII characters by 47 positions. Also self-inverse.
Is ROT13 secure?
No. ROT13 is obfuscation, not encryption. It provides zero cryptographic security.