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Security & Cryptography

ROT47 Encoder & Decoder

Encode and decode text with the ROT47 cipher.

Free foreverRuns in your browserNo sign-up
Result

100% private - runs entirely in your browser.

Your input, keys and passwords are never uploaded. Want proof? Load this page, then turn off your internet - the tool still works. For an exact check, open your browser's DevTools Network tab and confirm no data is sent when you use it.

About the ROT47 Encoder & Decoder

Encode and decode text with ROT47, which shifts all printable ASCII characters (not just letters) by 47 places.

Unlike ROT13, ROT47 also changes numbers and punctuation, and the same operation decodes.

A fun way to obscure text in forums and puzzles.

Key features

  • Symmetric encode and decode
  • Shifts letters, numbers and punctuation
  • Works on all printable ASCII
  • Copy the result instantly

How to use

  1. 1Type or paste your text.
  2. 2Read the transformed result.
  3. 3Run it again to decode.

Examples

Encode
Input: Hello, World!
Output: w6==@[ (@C=5P

Every printable character is shifted by 47.

Decode
Input: w6==@[ (@C=5P
Output: Hello, World!

The same operation reverses it.

Frequently asked questions

How is ROT47 different from ROT13?
ROT13 only rotates letters, while ROT47 rotates the full printable ASCII range, so digits and symbols change too.
Is ROT47 secure?
No. Like ROT13, it only obscures text and is trivial to reverse.
Is my data uploaded?
No. Everything runs in your browser.