CanJS

AngularJS lets you write client-side web applications as if you had a smarter browser. It lets you use good old HTML (or HAML, Jade and friends!) as your template language and lets you extend HTML’s syntax to express your application’s components clearly and succinctly. It automatically synchronizes data from your UI (view) with your JavaScript objects (model) through 2-way data binding.

It is a library for building interactive web interfaces. It provides data-reactive components with a simple and flexible API.

Backbone supplies structure to JavaScript-heavy applications by providing models key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing application over a RESTful JSON interface.

It is a TypeScript-based open-source web application framework. It is a development platform for building mobile and desktop web applications.

A JavaScript framework that does all of the heavy lifting that you'd normally have to do by hand. There are tasks that are common to every web app; It does those things for you, so you can focus on building killer features and UI.

Aurelia is a next generation JavaScript client framework that leverages simple conventions to empower your creativity.

It is a JavaScript library with a RESTful JSON interface and is based on the Model–view–presenter application design paradigm. Backbone is known for being lightweight, as its only hard dependency is on one JavaScript library, Underscore.js, plus jQuery for use of the full library.

It is used for building component-based user interfaces for web applications and was formalized as a standard through the Java Community

Mithril is around 12kb gzipped thanks to its small, focused, API. It provides a templating engine with a virtual DOM diff implementation for performant rendering, utilities for high-level modelling via functional composition, as well as support for routing and componentization.

It is a development toolkit for building and optimizing complex browser-based applications. Its goal is to enable productive development of high-performance web applications without the developer having to be an expert in browser quirks, XMLHttpRequest, and JavaScript.

Durandal is a cross-device, cross-platform client framework written in JS and designed to make Single Page Applications (SPAs) easy to create and maintain.

We <3 Backbone.js at &yet. It’s brilliantly simple and solves many common problems in developing clientside applications. But we missed the focused simplicity of tiny modules in node-land. We wanted something similar in style and philosophy, but that fully embraced tiny modules, npm, and browserify. Ampersand.js is a well-defined approach to combining (get it?) a series of intentionally tiny modules.

Espresso.js is a tiny MVC framework inspired by Backbone and React with a focus on simplicity and speed. We've aimed to bring the ideas of unidirectional data flow of Flux to a simple, Backbone-style library.

It is a JavaScript library that helps you manage data in rich client applications. If you store data in a database, query and save those data as complex object graphs, and share these graphs across multiple screens of your JavaScript client, Breeze...

Chaplin addresses Backbone’s limitations by providing a lightweight and flexible structure that features well-proven design patterns and best practices. Chaplin empowers you to quickly develop scalable single-page web applications; allowing you to focus on designing and developing the underlying functionality in your web application.

It is an open source JavaScript framework that makes it easy to build high performance, real time web and mobile applications. It is used to make beautiful, real-time user interfaces that can be exported to run on every platform.