Content Tools
A JS library for building WYSIWYG editors for HTML content.
YUI3
YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.
Overlay Scrollbars
A javascript scrollbar plugin which hides native scrollbars, provides custom styleable overlay scrollbars and keeps the native functionality and feeling.
Broccoli
Browser compilation library – a build tool for applications that run in the browser
Polyglot.js
Give your JavaScript the ability to speak many languages.
Elevator.js
Finally, a "back to top" button that behaves like a real elevator.
Processing.js
A port of the Processing visualization language to JavaScript.
Granim.js
Create fluid and interactive gradients animations with this small (< 10 kB) js library.
Csscomb.js
CSS coding style formatter
Devextreme Reactive
DevExtreme Reactive Components
Faye
Simple pub/sub messaging for the web
Kinetic Js
KineticJS is an HTML5 Canvas JavaScript library that extends the 2D context by enabling canvas interactivity for desktop and mobile applications.
Xregexp
Extended JavaScript regular expressions
Hogan.js
A compiler for the Mustache templating language
Cannon.js
A lightweight 3D physics engine written in JavaScript.
Tilt.js
A tiny 60+fps parallax tilt hover effect for jQuery.