Collection of tools and resources for developers
Encode to url-encoded format (also known as "percent-encoded") or decode from it
Parse an url string to get all the different parts (protocol, origin, params, port, username-password, ...)
Get information about your current device (screen size, pixel-ratio, user agent, ...)
Convert MIME types to extensions and vice-versa
Parse and decode your JSON Web Token (JWT) and display its content
Find the JavaScript keycode, code, location and modifiers of any pressed key
Detect and parse Browser, Engine, OS, CPU, and Device type/model from an user-agent string
The list of all HTTP status codes their name and their meaning