Handorgel
Accessible W3C conform accordion written in ES6.
Bind.js
bind.js - simple two way data binding to HTML and callbacks
Packery
bin-packing layout library
React Virtualized
React components for efficiently rendering large lists and tabular data
Wow
Reveal CSS animation as you scroll down a page
Phantomjs
Scriptable Headless WebKit
Node List.js
NodeList implementation/library - Use the Native DOM APIs as easily as jQuery
Motionia
Motionia is a lightweight simplified on demand animation library! https://git.io/motionia
Dragula
:ok_hand: Drag and drop so simple it hurts
Domready
let's you know when the dom is ready
Jquery Waypoints
Waypoints is a small jQuery plugin that makes it easy to execute a function whenever you scroll to an element.
Tippyjs
Highly customizable vanilla JS tooltip/popover library
Gator
Event delegation in Javascript
Veinjs
Injects CSS into the document (it's a perfectly legal procedure)
Zepto
Zepto.js is a minimalist JavaScript library for modern browsers, with a jQuery-compatible API
Do Mtastic
Small & fast DOM and event library for modern browsers.
Mag.js
MagJS - Modular Application Glue