About our converters
Converting between formats is one of those tasks that is trivial when you have the right tool and maddening when you do not. This category handles the conversions that come up across everyday life and everyday coding: a unit converter for length, weight, temperature, volume and speed; a color converter that moves between HEX, RGB and HSL with a live picker; a JSON formatter that beautifies, minifies and validates data; and a Base64 encoder and decoder. The developer-leaning tools are just as useful for students and hobbyists, and each page explains what the format is and when you would use it — so the color converter also teaches the difference between HEX and HSL, for instance. All free, all browser-based, no account required.
Every tool here is free, works on desktop and mobile, and comes with a plain-English guide. Looking for something else? Browse all categories or read our guides.