H264 Maximum References Frames

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

The Email Finder calculator allows users to search for and extract email addresses from a block of text using a regular expression.

The Hartley Information Calculator determines the amount of information contained in a message with length n using Hartley's formula.

The phone number extractor calculator is a useful tool that extracts phone numbers from a large block of text.

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 list filter calculator allows users to apply multiple filters to an initial list of strings.

This calculators shows the possible variants of RAID arrays, based on the number of drives available.

This online calculator splits lines of text using a regular expression.

The RGB-HSV Color Converter allows the user to convert RGB color values to HSV color values and vice versa.

This calculator generates palette of colors from starting color to ending color, using maximum diversity, "rainbow" style.

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 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.

Th calculator converts the html table code to JSON array with optional data transpose and compression. It also visualizes numeric data on chart.

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.

This online calculator converts VARIANT DATE (double) value to datetime string.

This online calculator can join two csv lists by key column the same way JOIN works in SQL (inner join, left outer join, right outer join)

This calculator visualizes Discrete Fourier Transform, performed on sample data using Fast Fourier Transformation. By changing sample data you can play with different signals and examine their DFT counterparts (real, imaginary, magnitude and phase graphs)

This online calculator generates and validates check digit with mod11 algorithm, used by ISBN-10

This online calculator encrypts and decrypts a message given Playfair cipher keyword. Non-alphabetic symbols (digits, whitespaces, etc.) are ignored.