Blazy
bLazy is a lightweight lazy loading and multi-serving image script. It's written in JavaScript why it doesn't have any dependencies for 3rd party libraries like jQuery. bLazy is working in all modern browser including IE7+.
Alloy Ui
Alloy is a UI metaframework that provides a consistent and simple API for building web applications across allthree levels of the browser: structure, style and behavior.
Meld
AOP for JS with before, around, on, afterReturning, afterThrowing, after advice, and pointcuts
Fast Memoize.js
:rabbit: Fastest possible memoization library
Frontless
Build universal JS applications with Riot.JS
Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
Tweet
put twitter on your website with tweet, an unobtrusive javascript plugin for jquery
Skel
A lightweight responsive framework for the www
Nunjucks
A jinja2-inspired templating system for javascript
Cycle Core
A fully reactive JavaScript framework for Human-Computer Interaction
Chaplin
An Application Architecture Using Backbone.js
Oc Lazy Load
Load modules on demand (lazy load) in AngularJS
Stapes
a (really) tiny Javascript MVC microframework
Flow Js
Javascript Library for Multi-step Asynchronous Logic
Kefir
A Reactive Programming library for JavaScript
Hermes.js
Message and Error logger implementation
Winjs
WinJS project by Microsoft Open Technologies