Online Text to ROT47 Converter Tool

ROT47 Converter

Securely encode and decode text using the ROT47 cipher algorithm. A powerful derivative of ROT13 that includes numbers and special characters.

Input Text

Enter text to encode/decode:

Result

ROT47 Output:

ROT47 Converter Guide

What is ROT47?

ROT47 is a character substitution cipher that replaces a character with the character 47 positions ahead in the ASCII table. It's an extension of the ROT13 cipher, but instead of only handling letters, ROT47 includes all printable ASCII characters (from 33 to 126).

Unlike ROT13 which only shifts alphabetic characters, ROT47 shifts numbers, punctuation, and symbols as well. This makes it appear more secure, but it's still a weak cipher that provides only minimal obfuscation.

How ROT47 Works

The ROT47 algorithm works by rotating characters within the ASCII range of 33 ("!") to 126 ("~"). There are 94 characters in this range, and shifting by 47 positions (half of 94) creates a self-reciprocal cipher:

// JavaScript implementation
function rot47(str) {
  return str.replace(/[!-~]/g, function(ch) {
    return String.fromCharCode(
      ch.charCodeAt(0) - 47 < 33 ?
        ch.charCodeAt(0) + 47 :
        ch.charCodeAt(0) - 47
    );
  });
}

This self-reciprocal property means that applying ROT47 twice will return the original text. Therefore, the same algorithm is used for both encoding and decoding.

ROT47 Examples

Text Encoding

Original: Hello World! 123

ROT47: w6==@ (@C=5P 234

Special Characters

Original: @#$%^&*()_+

ROT47: 23456789`ab

Double Encoding

Original: Secret Message

First ROT47: $64C6E |6DD286

Second ROT47: Secret Message

ROT47 Character Mapping

Below is a complete reference table for the ROT47 cipher:

Original	ROT47	Original	ROT47	Original	ROT47

Features of This ROT47 Converter

Real-time Processing

Instantly converts text as you type for efficient workflow

Fully Responsive

Works perfectly on desktops, tablets, and mobile devices

One-click Copy

Copy results to clipboard with a single button

Comprehensive Guide

Detailed explanations and examples included

Feature	Details
Price	Free
Rendering	Client-Side Rendering
Language	JavaScript
Paywall	No

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About This Tool

How It Works?