JavascriptMVC
Develop with direction! With CanJS, jQuery++, FuncUnit, Steal, DocumentJS.
Aura
A scalable, event-driven JavaScript architecture for developing widget-based applications. Works with Backbone.js and other frameworks.
Hydra.js
Create a scalable, maintainable and module oriented system using Hydra.js
Canjs
Can do JS, better, faster, easier.
Enyo
A JavaScript application framework emphasizing modularity and encapsulation
Backbone Marionette
Make your Backbone.js apps dance with a composite application architecture!
Stapes
a (really) tiny Javascript MVC microframework
Spine
Lightweight MVC library for building JavaScript applications
Simplecart
A simple javascript shopping cart that easily integrates with your current website.
Sammy
Sammy is a tiny javascript framework built on top of jQuery, It's RESTful Evented Javascript.
Knockout
Knockout makes it easier to create rich, responsive UIs with JavaScript
Postal.js
JavaScript pub/sub library supporting some advanced subscription features, plus message capture and replay
Path.js
Simple, lightweight routing for web browsers
PubNub
PubNub makes Real-time Real Easy with a Simple Communications API. Two Functions: Send/Receive (Publish/Subscribe). We provide a web-service API for businesses to build scalable Data Push communication apps on Mobile, Tablet and Web. Bidirectional JSON.
Remote Storage
Client-side Javascript library to make apps compatible with a remote storage.
Javascript State Machine
A finite state machine javascript micro framework
YUI3
YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.