ROT13 Cipher
Encrypt or decrypt text by rotating letters 13 places (A ↔ N).
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Examples
Hello World
Encrypts to "Uryyb Jbeyq".
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Decode Example
Decrypts back to "Hello World".
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Secret Message
Try encrypting this sentence.
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About ROT13
ROT13 ("rotate by 13 places") is a simple letter substitution cipher that replaces a letter with the 13th letter after it in the alphabet. It is a special case of the Caesar cipher which was developed in ancient Rome.
Self-Reversible
Fast Encryption
Works Offline