Masonry
Layout elements in a grid, like a mason fitting stones in a wall
Fragment.js
A tiny tool for easily loading html fragments and templates
Turbolinks
Turbolinks makes navigating your web application faster
Nested
Gap free multi column grid
Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
Eqcss
EQCSS is a plugin that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up
Dragula
:ok_hand: Drag and drop so simple it hurts
jQuery Evergreen
Small & fast DOM and event library for modern browsers.
Node List.js
NodeList implementation/library - Use the Native DOM APIs as easily as jQuery
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.
Bespoke.js
DIY Presentation Micro-Framework
Laconic
Sane DOM Generation
Interact.js
Drag and drop, resizing and multi-touch gestures with inertia and snapping for modern browsers (and also IE8+)
Gator
Event delegation in Javascript
Packery
bin-packing layout library