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Apply the ROT13 cipher to the text.


Apply the ROT13 cipher to the selected text.

ROT13 is used in online forums as a means of hiding spoilers, punchlines, puzzle solutions, and offensive materials from the casual glance.

As puts it:

ROT13 (rotate by 13 places) replaces a letter with the letter 13 letters after it in the alphabet. It has been described as the "Usenet equivalent printing an answer to a quiz upside down" as it provides virtually no cryptographic security.



  • 17 May 2024: Fixed for PopClip 2024.5
  • 25 May 2022: Initial release
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