Convert · Text tools
ROT13 Encoder
Apply ROT13 to letters A–Z. Run again to decode.
How to use
- Paste text containing letters.
- Copy the ROT13 output.
- Paste the output back and run again to restore the original.
Features
- Letters only; punctuation and digits unchanged
- Symmetric encode/decode
- Everything runs in your browser. Your text is not uploaded to ToolsWeb servers.
Privacy & how it works
This text tool processes your input in the browser. Your text is not uploaded to ToolsWeb servers for this tool. Privacy Policy.
FAQ
Is ROT13 encryption?expand_more
No. It is a simple Caesar cipher for puzzles and light obfuscation, not security.
Is this tool free?expand_more
Yes. No signup and no paywall for core use.
Is my text uploaded?expand_more
No for this tool. Text stays in your browser while you work.
Do I need an account?expand_more
No. Open the page and start typing or pasting.