Grunt
Grunt: The JavaScript Task Runner
Forerunner Db
A JavaScript database with mongo-like query language, data-binding support, runs in the browser as a client-side DB or on the server via Node.js!
Epoch
A general purpose, real-time visualization library.
Device.js
Device.js makes it easy to write conditional CSS and/or JavaScript based on device operating system (iOS, Android, Blackberry, Windows, Firefox OS), orientation (Portrait vs. Landscape), and type (Tablet vs. Mobile).
Batman
Fighting Crime and Kicking Apps
jQuery Backstretch
Backstretch is a simple jQuery plugin that allows you to add a dynamically-resized, slideshow-capable background image to any page or element. The image will stretch to fit the page/element, and will automatically resize as the window/element size changes.
Wow
Reveal CSS animation as you scroll down a page
Underscore String
String manipulation extensions for Underscore.js javascript library.
Spin.js
A spinning activity indicator
Socialite
Socialite provides a very easy way to implement and activate a plethora of social sharing buttons.
Prefixfree
Break free from CSS prefix hell!
Horizon React
Simplifying the connection between Horizon and React by using higher order components.
Durandal
A cross-device, cross-platform client framework written in JavaScript and designed to make building Single Page Applications (SPAs) easy to create and maintain.
Bootbox
Wrappers for JavaScript alert(), confirm() and other flexible dialogs using Twitter's bootstrap framework
Bacon.js
FRP (functional reactive programming) library for Javascript
Alpaca
Easy HTML5 Forms for jQuery
Beerslider
A vanilla JS keyboard accessible plugin for any before-after comparison