Cipher Rot13

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Everyone
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Content rating
Everyone
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About this app

Use ROT13 to hide puzzle answers and spoilers from casual view. It rotates letters A–Z by 13 without changing digits; apply ROT13 again to get the original text. Compare ROT5, ROT18, ROT47 and Atbash, and copy the result offline. For play and learning only: it does not protect sensitive data.
Rotate A–Z by 13 for puzzles and spoilers. Apply it again to undo.
Updated on
7 Nov 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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What's new

Open testing release: quality, UX and localization improvements.