Path.js
Simple, lightweight routing for web browsers
Componentjs
ComponentJS -- Powerful run-time Component System for structuring HTML5-based Rich Clients
Scale App
scaleApp is a JavaScript framework for scalable One-Page-Applications
Refraction
A guard that represents a central point of control in your application
Jsface
Small, fast, elegant, powerful, and cross platform JavaScript OOP library. Support main(), singleton, super call, private, mixins, plugins, AOP and more.
JavascriptMVC
Develop with direction! With CanJS, jQuery++, FuncUnit, Steal, DocumentJS.
Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
Sherlock
Natural-language event parser for Javascript
Handlebars Helpers
A small collection of useful helpers for Handlebars.js
Backbone Nested
A plugin to make Backbone.js keep track of nested attributes.
Amplify
AmplifyJS is a set of components for data management and application communication.
Connective
agent-based reactive programming library for typescript
Spine
Lightweight MVC library for building JavaScript applications
Weld
Template antimatter for Node.js (Browsers too!)
Wee
Blueprint for modern web development
Raven Js
JavaScript client for Sentry
Jade
Jade - robust, elegant, feature rich template engine for nodejs