ROT Cipher
ROT family ciphers (ROT5/ROT13/ROT18/ROT47) for encryption and decryption with letter and digit shifting.
ROT Type
Enter text...
Instructions
About ROT
ROT ciphers are the simplest letter substitution ciphers. ROT13 shifts the alphabet by 13 positions (A to N, B to O). With 26 letters, ROT13 encryption and decryption are the same operation. ROT5 targets digits 0-9, ROT18 combines ROT5+ROT13, ROT47 handles ASCII 33-126 visible characters.
ROT Algorithm Comparison
Show results of all ROT algorithms for easy comparison
Steps
1. Select ROT type (ROT5/ROT13/ROT18/ROT47); 2. Enter text, click 'Encrypt' or 'Decrypt' (for most ROT types encryption and decryption are the same operation).
Notes
ROT13 restores original text when applied twice; ROT5 only affects digits, letters unchanged; ROT18 handles both digits and letters; ROT47 processes all visible ASCII characters.