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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.
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.
This online calculator parses emails from block of text using regular expression
This parser break GET request string to the parameter-value pairs and decodes URL-encoded sequences, if needed
Format a list using regular expressions
The calculator checks LL1 grammar correctness, parses a text using the grammar, shows FIRST, FOLLOW and FIRST PLUS sets, parsing tree and gives PLANETCALC parsing code.
This calculator generates palette of colors from starting color to ending color, using maximum diversity, "rainbow" style.
This calculators shows the possible variants of RAID arrays, based on the number of drives available.
This calculator converts RGB color to HSV color and vise versa
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
This converter decodes URL-encoded string (percent-encoded characters). It converts reserved characters as well as UTF-8 characters