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's a special case of the Caesar cipher and is its own inverse; that means the same action can be used for both encoding and decoding. For example, applying ROT13 to 'Hello' gives 'Uryyb', and applying it again to 'Uryyb' returns 'Hello'.
This utility is often used in online forums to hide spoilers, punchlines, or puzzle solutions from a casual glance. It is not a method of encryption and provides no security, but it's a quick and fun way to obfuscate text.
This utility is often used in online forums to hide spoilers, punchlines, or puzzle solutions from a casual glance. It is not a method of encryption and provides no security, but it's a quick and fun way to obfuscate text.
🔄ROT13 Cipher
ROT13 is a simple letter substitution cipher. Applying it twice returns the original text. It is not a form of security.
Frequently Asked Questions
What happens to numbers and symbols?
The ROT13 cipher only applies to the letters of the alphabet (A-Z, a-z). All other characters, such as numbers, symbols, and spaces, are left unchanged.
Is ROT13 a form of encryption?
No, it should not be considered encryption. It provides no real security because the method for reversing it is widely known and is, in fact, the exact same as the method for applying it. It's only for casual text obfuscation.
