Text TOOL
ROT13 & Caesar Cipher - Encode & Decode
Apply ROT13 or a Caesar shift cipher to text and decode it back. For learning and puzzles — not encryption. Free and 100% client-side, right in your browser.
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How to use this tool
- Enter or select your input.
- Run the tool and review the result.
- Copy or download the output when available.
About this tool
Apply ROT13 or a Caesar shift cipher to text and decode it back. For learning and puzzles — not encryption. Free and 100% client-side, right in your browser.
Frequently asked questions
Is my data uploaded?
This tool processes input in your browser. Files and text are not sent to our server by this page.