Turbolinks
Turbolinks makes navigating your web application faster
Dragula
:ok_hand: Drag and drop so simple it hurts
Nested
Gap free multi column grid
React Virtualized
React components for efficiently rendering large lists and tabular data
Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
jQuery Evergreen
Small & fast DOM and event library for modern browsers.
Eqcss
EQCSS is a plugin that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up
Enquire.js
Awesome Media Queries in JavaScript
Vue Js Modal
:pizza: Simple to use, highly customizable, mobile friendly Vue.js 2.0+ modal.
Bespoke.js
DIY Presentation Micro-Framework
Interact.js
Drag and drop, resizing and multi-touch gestures with inertia and snapping for modern browsers (and also IE8+)
Aurora
Hate Cookies? Introducing Aurora, 100% Cookie-Free Open Website Analytics. Collect Anonymous Data. Make your Audience Happy Now!
Phantomjs
Scriptable Headless WebKit
Isotope
An exquisite jQuery plugin for magical layouts. Enables filtering, sorting, and dynamic layouts.
Laconic
Sane DOM Generation
Gator
Event delegation in Javascript
Cortex
A javascript library for centrally managing data with React