26 JavaScript frameworks and Libraries

jQuery is a fast, small, and feature-rich JavaScript library.
IE, Firefox, Safari, Opera, Chrome, and more
Supports CSS3 selectors to find elements as well as in style property manipulation

Why AngularJS?
HTML is great for declaring static documents, but it falters when we try to use it for declaring dynamic views in web-applications Extensibility
AngularJS is a toolset for building the framework

D3.js is a JavaScript library for manipulating documents based on data
D3 allows you to bind arbitrary data to a Document Object Model (DOM)
Modifying documents using the W3C DOM API is tedious:

It is released under the free, open-source MIT License. MooTools (My Object-Oriented Tools) is a lightweight, object-oriented JavaScript framework

Greeting! With this post I am pleased to announce general availability of the new Ample SDK 0.9.4 build. 
Because its documentation is still sparse and the examples lack clear explanation

Backbone.js gives structure to web applications by providing models with key-value binding and custom events,
The project is hosted on GitHub, and the annotated source code is available, as well as an online test suite,

A JavaScript toolkit that saves you time and scales with your development process. Provides everything you need to build 
created with the goal to promote the adoption of the toolkit.

Don’t waste time making trivial choices. 
Write dramatically less code with Ember’s Handlebars integrated templates 
Ember.js is built for productivity. Designed with developer ergonomics in mind

Use Enyo to develop apps for all major platforms, from phones and tablets to PCs and TVs
Enyo has powered apps for Palm phones, the HP TouchPad and now the 2014 LG Smart TV

The most comprehensive JavaScript framework for building feature-rich cross-platform web applications targeting desktop,
Sencha Ext JS is the most comprehensive MVC/MVVM JavaScript framework for building feature-rich cross-platform web applications targeting desktops.

The latest iteration, Echo3, features the ability to write applications in either server-side Java or client-side JavaScript.
Echo is a platform for building web-based applications that approach the capabilities of rich clients.

GWT is used by many products at Google, including Google AdWords and Google Wallet. 
his site houses links to the documentation, source code repository, issues list and information related to GWT roadmap and release.

SproutCore is an open-source framework for building blazingly fast, innovative user experiences on the web.
You’ve heard all about SproutCore and now it’s time to see for yourself. It’s easier than ever to get started with our new tutorial. In it you’ll learn:

The DHTMLX suite (or dhtmlxSuite) is a JavaScript GUI widget library for building dynamic web applications with desktop-like user experience and Ajax data loading.
The first components dhtmlxTree and dhtmlxGrid, were released in 2005-2006. Later.

midori is an ultra-lightweight JavaScript framework that gets the job done without getting in your way.
Use CSS selectors to quickly access matching elements on a page.

This screencast is an introduction to MochiKit 1.1, using the interactive interpreter example as a
conduit for showing off concepts from each MochiKit module.

Build enterprise-ready web applications, responsive to all devices and running on the browser of your choice. That’s OpenUI5.
OpenUI5 is an Open Source JavaScript UI library, maintained by SAP and available under the Apache 2.0 license.

Prototype takes the complexity out of client-side web programming. 
The new bugfix release of Prototype features lots of tiny fixes and one giant change under the hood.

script.aculo.us provides you with easy-to-use, cross-browser user interface JavaScript libraries to make interface Java Script libraries to make your we sites and web applications fly.

pyjs is a Rich Internet Application (RIA) Development Platform for both Web and Desktop. With pyjs you can write your JavaScript-powered web applications entirely in Python.

qooxdoo is entirely class-based, tries to leverage the features of object-oriented JavaScript and is based on namespaces. Most modern browsers are supported,

Rico is an open source JavaScript framework used to create rich, highly interactive web applications.
Framework and is released under the Apache License.

SmartClient combines the industry’s richest set of cross-browser UI components
Empower your team to tackle complex, large-scale applications on pure web standards.

Wakanda is a broad platform that appeals to many different types of developers. Explore our entire product line to see what parts interest you most.

Webix is a JavaScript and HTML5 framework for developing cross-platform data-rich mobile and desktop web applications with
highly responsive user interfaces.The library is distributed under both open-source GNU GPLv3 and Commercial licenses,

YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.
The Yahoo! User Interface Library (YUI) is a discontinued open-source JavaScript library for building richly interactive