ROT13 Encoder and Decoder
Shifts every letter 13 places, and running it twice returns the original text. Paste your text, see the result straight away, and copy it with one…
8 of 8 free uses remaining today
Shifts every letter 13 places, and running it twice returns the original text. Paste your text, see the result straight away, and copy it with one click. Nothing is uploaded: the tool runs entirely in your browser, so your text stays on your device.
Worked example
Example calculated from the starting values. Enter your own values and press Transform text to get your result.
Frequently asked questions
What does the rot13 tool do?
Shifts every letter 13 places; running it twice returns the original text.
Can you show an example?
Input: "Hello, World!" → Output: "Uryyb, Jbeyq!"
Is my text uploaded anywhere?
No. The tool runs in your browser, so your text never leaves your device.
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