Discover interesting open source projects that solve all types of interesting problems.

Winamp2-js: a reimplementation of Winamp 2.9 in HTML5 and Javascript
Discover Winamp2-js, an awesome remake of the old school Winamp 2.9 made in Web technologies.
JSPaint: an awesome web-based Microsoft Paint remake (95, 98, XP Version)
Discover JSPaint, a nostalgic JS based project that implements an exact copy of the old school Microsoft Paint.
Adminer: an online Database manager in a single PHP file
Discover Adminer, a full-featured database management tool written in PHP.
Boostnote: an open source note-taking app for desktop and mobile devices
Discover Boostnote, the open source note-taking app made for programmers just like you.
PHP Debug Bar: display profiling data from any part of your application in any PHP Project
Discover PHP Debug Bar, a generic debug bar easy to integrate with no other dependencies.
Kint: a modern and powerful PHP debugging helper
Discover Kint, a pretty and reliable replacement for var_dump(), print_r() and debug_backtrace().
Prepack: a partial evaluator for JavaScript that generates efficient JavaScript
Discover Prepack, a tool that rewrites a JavaScript bundle, resulting in JavaScript code that executes more efficiently.
Matreshka.js: a simple JavaScript framework to create single page applications
Discover Matreshka.js, the single page application framework that has a reactive API which allows to solve hard and confusing problems easily.
Grommet: A design system made for ReactJS
Discover Grommet, a design system that allows you to focus on the essential experience of your application.
Betwixt: a Web Debugging Proxy based on Chrome DevTools Network panel
Discover Betwixt, a tool that help you analyze web traffic outside the browser using familiar Chrome DevTools interface.