💡ROT13 is reversible obfuscation only. Do not use it for security.
About ROT13
ROT13 is a simple letter substitution cipher that replaces a letter with the letter 13 letters after it in the alphabet. It is not encryption and provides no real security.
ROT13 encoder/decoder online — free, no upload (FAQs)
FAQs
Is ROT13 secure?
No. It is only obfuscation, not encryption.
Does this run locally?
Yes. It runs entirely in your browser; nothing is uploaded.
What characters are affected?
Only A–Z and a–z alphabetic characters are rotated.