Conversion
Convert timestamps and dates, change number bases, translate colour formats, convert units and parse cron expressions. Results update as you type, with nothing uploaded.
Tools in this category
Timestamp Converter
Convert Unix timestamps into readable dates and back, with seconds and milliseconds told apart, a time zone picker and batch mode. Runs in your browser.
Date Calculator
Count the days, weeks or months between two dates, or shift a date by any of those. Dates can be picked from a calendar or pasted in — nothing is uploaded.
Number Base Converter
Convert numbers between binary, octal, decimal, hex and base 36, with long IDs converted digit for digit. Runs entirely in your browser.
Cron Parser
Explain a cron expression field by field and list its next run times, saying plainly when a schedule can never fire. Runs entirely in your browser.
Color Converter
Convert a colour between HEX, RGB, HSL and HSV, and check whether text and background clear the WCAG AA or AAA contrast ratio, all locally.
Unit Converter
Convert between units of length, weight, temperature, volume and more, seeing one value in every unit of its category at once, all in your browser.