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Text fitness (version 2)
This online calculator calculates measure known as fitness score, of how given text is similar to a typical English text. It uses frequencies of unigrams, bigrams and trigrams to calculate fitness score. The reference frequencies are calculated from Leipzig Corpora Collection and can be downloaded from http://practicalcryptography.com/cryptanalysis/text-characterisation/quadgrams/. The less value you get, the better.
Text fitness (version 3)
This online calculator calculates measure known as fitness score, of how given text is similar to a typical English text. It uses logarithms of probabilities with normalization to calculate fitness score. The reference frequencies are calculated from Leipzig Corpora Collection and can be downloaded from http://practicalcryptography.com/cryptanalysis/text-characterisation/quadgrams/. The less value you get, the better.
Polynomial power expansion
The calculator expands n-th power of a given polynomial.
CompuServe RLE file viewer
This online calculator can parse and display images from CompuServe graphics files in RLE format
Jarvis march
This online calculator computes the convex hull of a given set of points using Jarvis march algorithm, aka Gift wrapping algorithm
Jarvis march
This online calculator computes the convex hull of a given set of points using Jarvis march algorithm, aka Gift wrapping algorithm
Ancient PixelArt: CompuServe RLE file viewer
This online calculator can parse and display images from CompuServe graphics files in RLE format
Run-length encoding
This online calculator compresses the entered string using the run-length encoding (RLE) method.
Bit length
The calculator counts number of bits required to represent a number in the binary form. It also displays an input number in binary, octal, decimal, and hex forms.
UTF-8 encoded string
The calculator converts an input string to a UTF-8 encoded binary/decimal/hexadecimal dump and vice versa.
Text file encoding
You can use this calculators to encode a text with an encoding.
Text file decoder
Using this calculator you can decode and read a text file in some encoding.
Binary file
You may use this calculator to create binary file by editing its content in hexadecimal, decimal or binary form.
LZW
This calculator compresses/decompresses a string using Lempel-Ziv-Welch (LZW) algorithm.
Unicode scripts and blocks
The calculators for counting number of characters per different Unicode blocks and Unicode scripts for a given text.
Jpeg file structure
The calculator displays the dimensions of an input jpeg file as well as jiff markers stored in the file.
Handlebars Templates
Sandbox for experimenting with the Handlebars templating engine. Allows you to set a text template, JSON object and display the result processed by the handlebars js library
OpenOffice/LibreOffice document generator using Handlebars templates
This online generator allows you to upload a document template as an OpenOffice Document File (odt) file, with Handlebars templates included, and generate a final document based on the data entered in JSON format.
Selecting a specified number of rows from the list randomly
This calculator allows you to pick a selection of strings from a list at random. You can select with or without repeats. The calculator uses a random number generator built into Javascript.
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