ROT13 Encoder/Decoder
Encode or decode text using ROT13 instantly. ROT13 is a simple letter substitution cipher that rotates each letter by 13 places.
Input
Output (ROT13)
What is ROT13?
ROT13 (rotate by 13 places) is a substitution cipher used to obfuscate text by replacing each letter with the letter 13 positions after it in the alphabet.
Applying ROT13 twice returns the original text, making it useful for reversible obfuscation.
How to Use the ROT13 Encoder/Decoder
Quick steps:
Step 1:Enter text:
Type or paste your text in the input box.
Step 2:Get ROT13:
The ROT13 output appears instantly on the right.
Step 3:Copy:
Copy input or output using the copy buttons.
Common Use Cases
When to use ROT13:
- Spoiler textHide spoilers in forums or chats.
- Light obfuscationObfuscate text where reversible transformation is acceptable.
- EducationDemonstrate basic substitution ciphers.
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