Enyo
A JavaScript application framework emphasizing modularity and encapsulation
Aload
Loads images, scripts, styles, iframes, videos and audio asynchronously.
101
A modern JS utility library
Transparency
Transparency is a semantic template engine for the browser. It maps JSON objects to DOM elements by id, class and data-bind attributes.
Humane.js
A simple, modern, browser notification system
Weld
Template antimatter for Node.js (Browsers too!)
Knockout Projections
Knockout.js observable arrays get smarter
Serenade.js
Client side MVC framework
Sticky Kit
A jQuery plugin for creating smart sticky elements
Davis.js
RESTful degradable JavaScript routing using pushState
Sammy
Sammy is a tiny javascript framework built on top of jQuery, It's RESTful Evented Javascript.
Jsface
Small, fast, elegant, powerful, and cross platform JavaScript OOP library. Support main(), singleton, super call, private, mixins, plugins, AOP and more.
Raven Js
JavaScript client for Sentry
Cycle Core
A fully reactive JavaScript framework for Human-Computer Interaction
Tock
Timer Object/Class. Kickass!
Min Pub Sub
198 byte publish/subscribe messaging micro-framework
Kefir
A Reactive Programming library for JavaScript