ROT-47 Data Encoder

World's simplest crypto tool

This browser-based utility encrypts the specified textual data using the ROT47 encryption algorithm. It shifts all input ASCII characters with ASCII codes from the range 33 to 126 by 47 positions and returns the ROT47 ciphertext. It's slightly better than ROT13 but still not very secure. Created by cryptonerds from team Browserling.

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Input Data

Output Data (ROT-47)

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What is a ROT-47 Data Encoder?

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This online utility encodes the input data using the ROT47 algorithm. The ROT47 cipher, which stands for "rotate by 47 places" is an extended version of the ROT13 cipher. The principle of operation of ROT47 is to cyclically shift the symbols by 47 positions to the right. Unlike ROT13, which encodes only lowercase and uppercase Latin letters (total of 26 symbols), ROT47 encodes all printable ASCII characters (total of 94 symbols). The first character in the ROT47 charset is "!" and the last character is "~". The advantage of ROT47 over ROT13 is that it can also encrypt numbers and punctuation marks. For example, to ROT47-encrypt the word "Hi5" the program replaces the 72nd ASCII letter "H" with the 119th (72 + 47) letter "w", the 105th letter "i" with the 58th (105 + 47 % 94) character ":", and the 53rd digit "5" with the 100th letter "d", and produces the result "w:d". An interesting fact about ROT47 is that applying the ROT47 encoding again to the already encoded data, such as "w:d", we get back the starting data "Hi5". In mathematical terms, ROT47 is its own inverse function. Cryptabulous!

ROT-47 Data Encoder examples

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ROT47 Encrypt a Quote

In this example, we encrypt a quote by Tony Robbins using the ROT-47 encryption scheme. All characters except spaces are replaced by their corresponding shifted ASCII table symbols. The shift width is 47 characters.

Your destiny is determined by the choices you make. Tony Robbins

*@FC 56DE:?J :D 56E6C>:?65 3J E96 49@:46D J@F >2<6] %@?J #@33:?D

Moon Landing

This example uses the ROT-47 cypher to scramble the Moon landing data. This cypher rotates all printable characters by 47 places and returns unreadable secret data. Unfortunately, the spaces and newlines are preserved as these characters are not in the ROT-47 encoding range 33 to 126. This shortcoming of ROT-47 leaks the physical structure (positions of words and lines) of the data.

Date: July 20, 1969. Spaceflight: Apollo 11. Destination: the Moon.

s2E6i yF=J a_[ `heh] $A2467=:89Ei pA@==@ ``] s6DE:?2E:@?i E96 |@@?]

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You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!

https://onlinecryptotools.com/rot47-encrypt-data?input=Your%20destiny%20is%20determined%20by%20the%20choices%20you%20make.%20Tony%20Robbins

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ROT-13 Encode Data

Quickly encrypt data using the ROT13 substitution cipher.

ROT-13 Decode Data

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ROT-47 Encode Data

Quickly encrypt data using the ROT47 substitution cipher.

ROT-47 Decode Data

Quickly undo ROT47 encryption and find the original message.

Analyze Letter Frequency

Quickly count letters in the given text and print their distribution.

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Print a list of random numbers.

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Print a list of twin prime numbers.

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Print a list of cousin prime numbers.

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Print a list of prime triplets.

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Print a list of random prime numbers.

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Check if the given numbers are prime numbers.

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Generate one or more random passwords.

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Rewrite the given message with a new alphabet.

Calculate Text Entropy

Compute the Shannon entropy of the given message.

Generate High Entropy Data

Create text with high Shannon entropy.

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Analyze Random Data

Perform statistical analysis of random data.

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We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling our mission is to make developers' lives easier, so we created this collection of online cryptography tools. Unlike many other tools, we made our tools free, without ads, and with the simplest possible user interface. Our online crypto tools are actually powered by our programming tools that we created over the last couple of years. Check them out!

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