ROT13/ROT47 Converter

Apply ROT13 or ROT47 rotation to text

Rotation Mapping
Original
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Rotated
NOPQRSTUVWXYZABCDEFGHIJKLM

About ROT13

ROT13 shifts each letter by 13 positions. Since the alphabet has 26 letters, applying ROT13 twice returns the original text. It only affects letters A-Z and a-z.