Encode or decode text using the ROT (Caesar shift) cipher.
ROT cipher is a simple substitution cipher that shifts each letter in the alphabet by a fixed number of positions. A common example is ROT13, where letters are rotated by 13 places. It is often used for basic text obfuscation, puzzles, and programming challenges.
Input:
keydecryptor
Output:
xrlqrpelcgbe (ROT13)
How does the ROT cipher work?
Each letter in the text is shifted forward in the alphabet by a fixed number of positions. For example, in ROT13 the letter A becomes N, B becomes O, and so on.
Why is ROT13 commonly used?
ROT13 is popular because applying it twice returns the original text. This makes it useful for hiding spoilers, simple puzzles, and demonstration purposes.
Is the ROT cipher secure?
No. ROT ciphers are extremely easy to break because there are only a limited number of possible shifts. They are mainly used for learning and simple text obfuscation.
Apply the ROT13 substitution cipher - rotate each letter by 13 positions. Encoding and decoding are identical.
Supported Tools: