Tempo
Tempo is an easy, intuitive JavaScript rendering engine that enables you to craft data templates in pure HTML.
Nuclear Js
Reactive Flux built with ImmutableJS data structures. Framework agnostic.
Keymaster
A simple micro-library for defining and dispatching keyboard shortcuts. It has no dependencies.
Humane.js
A simple, modern, browser notification system
Google Closure Library
git-svn mirror of Google's Closure Library.
Q
A tool for making and composing asynchronous promises in JavaScript
Is.js
Micro check library
Backbone Deep Model
Improved support for models with nested attributes.
Twitterlib
Twitter JavaScript API library
Hydra.js
Create a scalable, maintainable and module oriented system using Hydra.js
YUI3
YUI is a free, open source JavaScript and CSS library for building richly interactive web applications.
History.js
History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for data, titles, replaceState. Supports jQuery, MooTools and Prototype. For HTML5 browsers this means that you can modify the URL directly, without needing to use hashes anymore. For HTML4 browsers it will revert back to using the old onhashchange functionality.
Bacon.js
FRP (functional reactive programming) library for Javascript
Then.js
The fastest, smallest, fully compatible, full-featured asynchronous module!
Ext JS
Repository for extjs to be used as a git-submodule in projects
Tungstenjs
Tungsten.js is a modular framework for creating web UIs with high-performance rendering on both server and client.
Speakingurl
Generate of so called "static" or "nice-looking" or "slug" or "SpeakingURL" from a string.