The most popular HTML, CSS, and JavaScript framework for developing responsive, mobile first projects on the web.

A pure node.js JavaScript Client implementing the MySQL protocol.

typeahead.js is a fast and fully-featured autocomplete library

The Swiss Army Knife of Vector Graphics Scripting – Scriptographer ported to JavaScript and the browser, using HTML5 Canvas. Created by @lehni & @puckey

MooTools Core Repository

jQuery plugin which allows your users to select multiple items from a predefined list

MooTools Plugins and Enhancements Repository

More popular than Git*ub

Server-side Google Closure with Node.js

Eases development with the Google Closure Tools in Symfony2

This is only a fork since the original project is not hosted on GitHub, see its official homepage