Toolgeist › Security
ROT47 Cipher — ASCII Rotation Encode/Decode
ROT47 rotates characters through the full printable ASCII range (94 characters), rather than just letters like ROT13 — so it also obscures numbers and symbols, not just words. Like ROT13, it provides no real security; it is purely a casual-obfuscation trick, not encryption.
How to use ROT47 Cipher
- Paste your text.
- Read the ROT47 result instantly, including transformed numbers and symbols.
- Run it again to decode back to the original.
Frequently asked questions
- How is ROT47 different from ROT13?
- ROT13 only rotates the 26 letters; ROT47 rotates across the full 94 printable ASCII characters, so digits, punctuation and symbols get obscured too — useful for hiding things like email addresses or code snippets, not just plain words.
- Is ROT47 more secure than ROT13?
- No — it is exactly as insecure. Rotating over a larger character set does not add any real cryptographic strength; both are trivially reversible with no key.
- Does applying ROT47 twice return the original?
- Yes — the printable ASCII range used is 94 characters, and rotating by 47 twice is a full 94-character rotation, which returns to the start.
Related Security tools
Also searched for: rot47 encoder decoder · ascii rotation cipher online · rot47 converter
Browse all 738 free tools on Toolgeist →