Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
jQuery.lazy
A lightweight, fast, feature-rich, powerful and highly configurable delayed content, image and background lazy loading plugin for jQuery & Zepto.
React Virtualized
React components for efficiently rendering large lists and tabular data
Wow
Reveal CSS animation as you scroll down a page
Do Mtastic
Small & fast DOM and event library for modern browsers.
Gliojs
Exit popup easely. Detects if the mouse of a user leaves the viewport borders of your website
Node List.js
NodeList implementation/library - Use the Native DOM APIs as easily as jQuery
Masonry
Layout elements in a grid, like a mason fitting stones in a wall
Dragula
:ok_hand: Drag and drop so simple it hurts
Nested
Gap free multi column grid
jQuery Evergreen
Small & fast DOM and event library for modern browsers.
Phantomjs
Scriptable Headless WebKit
Interact.js
Drag and drop, resizing and multi-touch gestures with inertia and snapping for modern browsers (and also IE8+)
Laconic
Sane DOM Generation
jQuery.nicescroll
nicescroll plugin for jquery - scrollbars like iphone/ipad
Isotope
An exquisite jQuery plugin for magical layouts. Enables filtering, sorting, and dynamic layouts.
Gator
Event delegation in Javascript