Phaser is a light-weight 2D game framework for making HTML5 games for desktop and mobile browsers
The magical disappearing UI framework
fullPage plugin by Alvaro Trigo. Create full screen pages fast and simple
generate massive amounts of fake data in Node.js and the browser
File Upload widget with multiple file selection, drag&drop support, progress bars and preview images for jQuery. Supports cross-domain, chunked and resumable file uploads and client-side image resizing. Works with any server-side platform (PHP, Python, Ruby on Rails, Java, Node.js, Go etc.) that supports standard HTML form file uploads.
Give your JS App some Backbone with Models, Views, Collections, and Events
Bluebird is a full featured promise library with unmatched performance.
Scriptable Headless WebKit
A modern, HTML5-ready alternative to CSS resets (as used by Twitter Bootstrap, HTML5 Boilerplate, TweetDeck, Soundcloud, and many others).
Leverage the future of the web platform today.