Category: Developer tools
ROT47 Converter
Encode and decode text with the ROT47 cipher in your browser
Encode or decode text with ROT47, a rotation cipher that shifts every printable ASCII character (including digits and punctuation) by 47 places. Applying it twice returns the original text. Runs entirely in your browser.
{@42=%@@=D a_aePEverything on this page is processed in your browser. Nothing is uploaded.
What this tool does
ROT47 is a variant of the classic ROT13 cipher that operates over the full range of 94 printable ASCII characters (! through ~) instead of just the 26 letters of the alphabet, so digits, punctuation and symbols are scrambled along with letters. Because 94 is even, shifting twice by 47 always returns to the original character, which makes ROT47 its own inverse — the same operation both encodes and decodes. It is not real encryption and is easily reversed, but it's a handy way to obscure text like spoiler text, email addresses or code snippets from a casual glance in forums and paste sites.
How to use it
- Paste or type the text you want to scramble or unscramble.
- The ROT47 result updates instantly below — running it through again restores the original text.
- Copy the result with the copy button.
Privacy
This tool runs entirely in your browser. Your input is never uploaded, stored or shared — closing the tab removes it.
Frequently asked questions
- Is ROT47 secure encryption?
- No. ROT47 is a simple, well-known rotation cipher meant to obscure text from a casual glance, not to protect it from anyone who wants to read it. Do not use it for anything sensitive.
- Why does the same button both encode and decode?
- ROT47 shifts characters within a 94-character range, and running the shift twice lands back on the original character, so encoding and decoding are the exact same operation.
- Is my text uploaded anywhere?
- No. The conversion happens locally in your browser and nothing is sent to a server.