ROT13 Encoder
Quickly encode or decode ROT13 text.
Uryyb, guvf vf n frperg.
ROT13 is its own inverse. Encoding twice gives you back the original.
About
ROT13 shifts every letter by 13 places. It's the most common Caesar variant because applying it twice returns the original text. Used historically on Usenet to hide spoilers and punchlines without truly encrypting them.
How to use
- Paste your text.
- The output is computed live.
- Copy and paste it wherever.
FAQ
Why use ROT13 instead of just hiding text?+
Tradition, mostly. On old text-only forums it was a polite way to share spoilers. The reader had to deliberately decode the text to read it, so accidents were rare.