ROT13 Converter
Apply ROT13 to any text, or decode ROT13 text back, with one button because ROT13 is its own inverse.
How to use
- Type or paste your text.
- Click Apply ROT13 to encode, or use it again on encoded text to decode.
- Copy the result wherever you need it.
ROT13 shifts each letter by 13 places. Because the alphabet has 26 letters, applying it twice returns the original text exactly. It hides spoilers from a casual glance but is not real encryption.
Frequently Asked Questions (FAQ)
What is ROT13?
A simple letter-substitution cipher that shifts each letter 13 places. Applying it twice returns the original text.
How do I decode ROT13 text?
Paste the text and click Apply ROT13 again, because ROT13 is its own inverse.
Is ROT13 real encryption?
No, it only hides text from a casual glance and should not be used to protect secrets.
Is the tool free?
Yes, free with no signup, and everything runs in your browser.