ROT13
Apply ROT13 to text in either direction (the cipher is its own inverse). A classic Caesar shift for puzzles and lightly obfuscated spoilers, not encryption. Runs entirely in the tab.
Runs in your browser. Nothing is uploaded.
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About this tool
ROT13 rotates Latin letters by 13 places; digits and punctuation pass through. Applying it twice restores the original, so both direction pills run the same transform.
How to use: paste text, copy the rotated form. Use it for spoilers and classic puzzles, not for passwords, tokens, or anything that must stay confidential. Related: AES encrypt if you needed real confidentiality in the tab.
Example: Hello becomes Uryyb. Non-ASCII letters are left unchanged. This is a Caesar cipher with a fixed shift, not a general ROT-N tool.
Transform is a local regex. After load, it works offline.
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