Online editor for building and previewing Vega and Vega-Lite data visualizations.
An online color picker tool for choosing colors and exporting them as hexadecimal, RGB, HSV or HSL codes. It shows color combinations including complementary, triadic and analogous schemes, and saved colors remain until cleared.
A browser-based utility that converts infix expressions to postfix or prefix notation and shows the conversion steps. It also evaluates postfix and prefix expressions. The page states that spaces must not be used in the expression. Algorithm steps for the postfix and prefix conversions are presented, and the page was updated on 26 February 2023.
A browser-based Graphviz viewer that renders graph descriptions written in the DOT language. The interface offers a choice of layout engines, including circo, dot, fdp, neato, sfdp and twopi, and output formats such as svg, png, json, xdot, plain and ps, with raw output and download options.
A collection of free browser-based tools for hashing, encoding, encryption, formatting, compression, file processing, QR codes, UUIDs, JSON and XML. It groups utilities for cryptography, compression, encoding and format conversion in one page.
Simple browser tool for encoding or decoding URLs, query strings, and escaped characters.
Calculator for working with very large integers used in cryptography, math, and technical checks.
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An online color picker tool for choosing colors and exporting them as hexadecimal, RGB, HSV or HSL codes. It shows color combinations including complementary, triadic and analogous schemes, and saved colors remain until cleared.
A browser-based utility that converts infix expressions to postfix or prefix notation and shows the conversion steps. It also evaluates postfix and prefix expressions. The page states that spaces must not be used in the expression. Algorithm steps for the postfix and prefix conversions are presented, and the page was updated on 26 February 2023.
A browser-based Graphviz viewer that renders graph descriptions written in the DOT language. The interface offers a choice of layout engines, including circo, dot, fdp, neato, sfdp and twopi, and output formats such as svg, png, json, xdot, plain and ps, with raw output and download options.
A collection of free browser-based tools for hashing, encoding, encryption, formatting, compression, file processing, QR codes, UUIDs, JSON and XML. It groups utilities for cryptography, compression, encoding and format conversion in one page.
Simple browser tool for encoding or decoding URLs, query strings, and escaped characters.
Calculator for working with very large integers used in cryptography, math, and technical checks.
