|Conversion from decimal numeral system|
This calculator converts given decimal value to other positional numeral system
|Conversion between any bases|
This calculator converts number from one numeral system to another, given both system's bases
|Regular expression tester|
This online calculator allows user to experiment with regular expressions.
|One's complement, and two's complement binary codes|
This online calculator displays one's complement and two's complement codes for the entered negative integer.
|Conversion of fractional numbers between numeral systems|
This online calculator helps to convert fractional number in one numeral system to fractional number in other numeral system.
|Keyboard layout and password|
Converts the word, typed in Russian letters into a set of symbols corresponding to these letters in English keyboard layout which is often used to create a Russian-speaking user passwords.
Calculator encrypts entered text by using Caesar cipher. Non-alphabetic symbols (digits, whitespaces, etc.) are not transformed.
|IP Address and Subnet Mask Calculator (IPv4)|
This online calculator determines subnet parameters for the given IP address and subnet mask
|Binary Coded Decimal (BCD)|
This online calculator converts decimal number to binary code in BCD notation and vice versa
Format a list using regular expressions
|Simple math in any numeral system|
This online calculator supports simple math (addition, subtraction, division, multiplication and power) for numbers expressed in any numeral system - binary, octal, hexadecimal, from the base 2 to base 36
|URL-encoded string decoder|
This converter decodes URL-encoded string (percent-encoded characters). It converts reserved characters as well as UTF-8 characters
|GET request string parser|
This parser break GET request string to the parameter-value pairs and decodes URL-encoded sequences if needed
Calculator encrypts entered text by using Vigenère cipher. Non-alphabetic symbols (digits, whitespaces, etc.) are not transformed.
|Symbol frequencies table|
This online calculator builds symbol frequency table for a given message
This online calculator computes Shannon entropy for a given event probability table and for a given message.
This online calculator generates Huffman coding based on a set of symbols and their probabilities. A brief description of Huffman coding is below the calculator.
|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.
|Unique words count|
This calculator counts the number of unique words in a text (total number of words minus all word repetitions). It also counts a number of repeated words. It also can remove all the repetitions from the text.
The calculator removes duplicates from an element list.