jQuery

HTML is great for declaring static documents, but it falters when we try to use it for declaring dynamic views in web-applications. AngularJS lets you extend HTML vocabulary for your …

DHTMLX is a JavaScript library that provides a comprehensive set of UI widgets and makes building web apps easy. Develop killer web apps with DHTMLX!

Backbone supplies structure to JavaScript-heavy applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event...

Zepto is a minimalist JavaScript library for modern browsers with a largely jQuery-compatible API.

MathJax is an open source JavaScript display engine for mathematics that works in all modern browsers, using LaTeX math and MathML markup.

Dojo Toolkit is an open source modular JavaScript library (or more specifically JavaScript toolkit) designed to ease the rapid development of cross-platform, JavaScript/Ajax-based applications and web sites.

Ext JS is a JavaScript library for building interactive web applications using techniques such as Ajax, DHTML and DOM scripting. Ext includes interoperability with jQuery and Prototype.

MooTools (My Object-Oriented Tools) is a lightweight, object-oriented, web-application framework for JavaScript.

Prototype is a JavaScript Framework that aims to ease development of dynamic web applications. Prototype provides various functions for developing JavaScript applications. The features range from programming...

Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the …

Lo-Dash is a drop-in replacement for Underscore.js that delivers performance improvements, bug fixes, and additional features. Lo-Dash’s performance is gained by avoiding slower native methods, instead...

A pure-JavaScript CSS selector engine designed to be easily dropped in to a host library, for the open source JavaScript library jQuery.

Free web application framework for building Web sites and Web applications using JavaScript, HTML and CSS.

Wink Toolkit is a lightweight JavaScript toolkit which will help you build great mobile web apps. It is designed and developed to meet the specific constraints of the mobile environment.

qooxdoo is a universal JavaScript framework that enables you to create applications for a wide range of platforms. With its object-oriented programming model you build rich, interactive applications (RIAs),...

Rico is a JavaScript library for creating rich internet applications. Version 1 is JavaScript only. Versions 2 & 3 include server-side code (asp, asp.net, and php) to make creating web …

Spine - Build Awesome JavaScript MVC Applications

MochiKit is a highly documented and well tested suite of JavaScript libraries that will help you get things done, fast. It takes good ideas found in Python, Objective-C, etc. and …

Popcorn.js is an HTML5 media framework written in JavaScript for filmmakers, web developers, and anyone who wants to create time-based interactive media on the web. Popcorn.js is part of Mozilla's …

X is a collection of loosely-bound, cross-browser, Javascript functions and objects. It is intended to be a resource from which you pick and choose - you do not have to …