Content Tools
A JS library for building WYSIWYG editors for HTML content.
Broccoli
Browser compilation library – a build tool for applications that run in the browser
YUI3
YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.
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.
Polyglot.js
Give your JavaScript the ability to speak many languages.
Csscomb.js
CSS coding style formatter
Devextreme Reactive
DevExtreme Reactive Components
Granim.js
Create fluid and interactive gradients animations with this small (< 10 kB) js library.
Faye
Simple pub/sub messaging for the web
Tilt.js
A tiny 60+fps parallax tilt hover effect for jQuery.
Hogan.js
A compiler for the Mustache templating language
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
Angular Meteor
Combining the simplicity and power of AngularJS and Meteor
Epoch
A general purpose, real-time visualization library.