Superagent
Ajax with less suck - (and node.js HTTP client to match)
Stampit
Create objects from reusable, composable behaviors.
Open Location Code
Open Location Codes are short, generated codes that can be used like street addresses, for places where street addresses don't exist.
Motus
Animation library that mimics CSS keyframes when scrolling.
Fastclick
Polyfill to remove click delays on browsers with touch UIs
Cta.js
Animate your 'action-to-effect' paths
Barba.js
Create badass, fluid and smooth transition between your website's pages.
Aura
A scalable, event-driven JavaScript architecture for developing widget-based applications. Works with Backbone.js and other frameworks.
Async Reactor
Render async Stateless Functional Components in React
Stats.js
JavaScript Performance Monitor
Croppie
A Javascript Image Cropper
Fluxible
A pluggable container for isomorphic flux applications
ES5 Shims
ECMAScript 5 compatibility shims for legacy JavaScript engines
Steal
Gets JavaScript
Sails
Realtime MVC Framework for Node.js
Modernizr
Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.
Jasmine
DOM-less simple JavaScript testing framework