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ROT13
Rotates every A–Z / a–z letter by 13 places; digits, punctuation and other scripts pass through unchanged. ROT13 is its own inverse, so running the output again restores the input.
A little guidance. A better result.
How to use ROT13
Rotate letters by 13 — its own inverse; digits and punctuation untouched.
Prepare your input
Paste text containing Latin letters.
Use the workspace
Review letters rotated by 13 positions.
Check your result
Run the output through ROT13 again to check that it restores the text.
Know the limits
ROT13 is reversible obfuscation, not encryption; digits and punctuation are unchanged.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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