cssConsole is a jquery plugin that allows you to transform DOM element into console/terminal like input.
Dropzone is an easy to use drag'n'drop library. It supports image previews and shows nice progress bars.
A simple, unobtrusive jQuery plugin that provides auto-updating timeago text to your timestamped HTML elements using Moment.js.
Stellar.js - Parallax scrolling made easy
Trip.js is a plugin that can help you customize a tutorial trip easily with more flexibilities. ( Based on jQuery )
jQuery Plugin for Sticky Objects
Adapt.js serves CSS based on screen width.
A collection of decorators for React Components
Web rendering surface for Node applications