ROT13 Encoder/Decoder
Free ROT13 encoder/decoder. ROT13 is a special Caesar cipher with shift 13, used to hide spoilers and sensitive content.
About ROT13 Translator
ROT13 is a special case of the Caesar cipher with a shift of 13. Because the alphabet has 26 letters, encoding twice returns the original text. It is commonly used to hide movie spoilers, puzzle answers, and other content that readers can choose to reveal.
How It Works
Each letter is shifted 13 positions. A becomes N, B becomes O, C becomes P, and so on through the alphabet. Letters wrap around, so N becomes A, O becomes B, etc. Applying ROT13 again reverses the transformation, making it self-inverse.
Common Uses
- Hiding movie spoilers
- Puzzles and brain teasers
- Censoring sensitive content
- Simple obfuscation
FAQ
Why use ROT13?
It's self-inverse, making encoding and decoding the same operation.
Is ROT13 secure?
No, it provides no real security, just simple obfuscation that can be easily broken.
What does ROT stand for?
ROT stands for "rotate" — the letters are rotated by a fixed number of positions.