Convert JSON and CSV, timestamps, colors, number bases, temperatures, and data sizes.
Convert a JSON array of objects to CSV, or CSV back to JSON, in your browser. Quoted fields, commas, and line breaks are handled correctly.
Convert Unix timestamps in seconds or milliseconds to UTC and local dates, and dates back to timestamps, in your browser.
Convert colors between HEX, RGB, and HSL with a live swatch, right in your browser. Type any one format to see the other two.
Convert integers between binary, octal, decimal, and hexadecimal in your browser, exactly, even for numbers beyond 2^53.
Convert temperatures between Celsius, Fahrenheit, and Kelvin in your browser, with absolute zero enforced.
Convert bytes, KB, MB, GB, TB and KiB, MiB, GiB, TiB in your browser, keeping decimal and binary units clearly apart.