ROT13 Encoder / Decoder
Apply the classic ROT13 letter cipher.
How to use ROT13 Encoder / Decoder
follow along with the steps below
1Paste or type your text in the box.
2The result appears instantly (or press Convert).
3Copy the result or download it as a .txt file.
About ROT13 Encoder / Decoder
ROT13 Encoder / Decoder is a free online tool from Supreme Pro. Apply the classic ROT13 letter cipher. It runs in your browser, so there is nothing to install and no account to create. Text tools are instant, and because nothing leaves your browser they are safe for private notes too.
Example
Hello World, this is Supreme Pro.
Uryyb Jbeyq, guvf vf Fhcerzr Ceb.
Common uses
- Clean up copied text, lists and code snippets in seconds
- Convert text between formats for writing, coding and data work
- Check and transform text without opening a spreadsheet or editor
Tips for best results
- Paste your text, then review the result before you copy it
- Use the download button to save longer results as a .txt file
- Try the same input in a different tool to compare results
Features
- Free, with no account needed
- Private: runs entirely on your device
- Instant results, no waiting
- Works on phones, tablets and computers
Frequently Asked Questions about ROT13 Encoder / Decoder
Quick answers about using ROT13 Encoder / Decoder.
What is the ROT13 Encoder / Decoder?
The ROT13 Encoder / Decoder is a free online tool from Supreme Pro. Apply the classic ROT13 letter cipher.
How do I use the ROT13 Encoder / Decoder?
Paste or type your text in the box. The result appears instantly (or press Convert). Copy the result or download it as a .txt file.
Is the ROT13 Encoder / Decoder free?
Yes. It is free to use and needs no account or sign-up.
Is my data safe?
Yes. Everything runs in your browser, so your input stays on your own device and is not uploaded to our servers.
Does the ROT13 Encoder / Decoder work on mobile?
Yes. The page is responsive and works on phones, tablets and computers.
What other tools can I use after the ROT13 Encoder / Decoder?
You can try HTML Entity Encoder, HTML Entity Decoder or Remove HTML Tags. All of them are free and run in your browser. You can also browse every one of our text tools.
Does ROT13 Encoder / Decoder work with languages other than English?
Text is handled as Unicode in your browser, so most languages can be pasted and processed. Effects that depend on the Latin alphabet, such as letter-case changes, only apply to letters that have a case.
Is there a limit on how much text I can paste into ROT13 Encoder / Decoder?
There is no fixed limit, but very large texts depend on your device and browser memory. If the page slows down, process the text in smaller parts.
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