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Search term: text. 18 results
  • A1Z26 cipher

    A1Z26 is very simple direct substitution cypher, where each alphabet letter is replaced by its number in the alphabet.

  • Atbash cipher

    This calculator allows you to encrypt and decrypt text with Atbash method

  • Base 64 encoding and decoding

    The calculators encode string to base64 string and decode back to original string. Special characters (+/) , generally produced by base64 algorithm, can be replaced by the data provided in additional parameter.

  • Caesar cipher

    Calculator encrypts entered text by using Caesar cipher. Non-alphabetic symbols (digits, whitespaces, etc.) are not transformed.

  • Count the number of words

    The calculator counts word number in a given text. It can be used for rough calculation of translation cost. Can be used for word number calculation in software resources.

  • Hill cipher

    This calculator uses Hill cipher to encrypt/decrypt a block of text

Shannon Entropy

This online calculator computes Shannon entropy for a given event probability table and for a given message

Shannon EntropyCreative Commons Attribution/Share-Alike License 3.0 (Unported)
Event probability table
Import data.
"One of the following characters is used to separate data fields: tab, semicolon (;) or comma(,)" 
Add Import data. Clear table
0.12345678901234567890
  • Isogram checker

    This online calculator can check if a word/phrase is an isogram.

  • Morse Code

    Morse Code translator

  • Pangram checker

    This online calculator can check if a phrase is a pangram.

  • PATHFINDER cipher checker

    This online calculator decrypts digits encrypted by PATHFINDER type of cipher.

  • Rail fence cipher

    This article contains two calculators, first can be used to encode message with the rail fence cipher, second can be used to crack message encoded with the rail fence cipher by brute force. Decoded simply outputs decoded message for different number of "rails".

  • Repeated Word Heatmap

    This calculator can help avoid unwanted word repetition in prose. It counts the number of occurrences of each word in the document, both globally, and within the "sliding window" distance before and after each word. It highlights the words which are used frequently near each other..

Standard Galactic Alphabet decoder

This online calculator can decode message written with standard galactic alphabet symbols

Standard Galactic Alphabet decoderCreative Commons Attribution/Share-Alike License 3.0 (Unported)
image/svg+xml
  • Repeated Word Heatmap

    This calculator can help avoid unwanted word repetition in prose. It counts the number of occurrences of each word in the document, both globally, and within the "sliding window" distance before and after each word. It highlights the words which are used frequently near each other..

  • Symbol frequencies table

    This online calculator builds symbol frequency table for a given message

  • Vigenère cipher

    Calculator encrypts entered text by using Vigenère cipher. Non-alphabetic symbols (digits, whitespaces, etc.) are not transformed.

  • Wordpress plugin

    With Planetcalc plugin for Wordpress you can easily insert any planetcalc calculator in your wordpress-based site or blog pages.

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