Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
Html
A simple, extensible way to work directly with the DOM.
Minified.js
Replace jQuery or MooTools with a <4kB Library
Tapestry5 jQuery
Tapestry 5 jQuery integration. Fully replace Prototype and Scriptaculous with jQuery with as less as possible compatibility issues
Hapi
The Simple, Secure Framework Developers Trust
React Virtualized
React components for efficiently rendering large lists and tabular data
Sizzle
A sizzlin' hot selector engine.
jQuery.lazy
A lightweight, fast, feature-rich, powerful and highly configurable delayed content, image and background lazy loading plugin for jQuery & Zepto.
Interact.js
Drag and drop, resizing and multi-touch gestures with inertia and snapping for modern browsers (and also IE8+)
Gliojs
Exit popup easely. Detects if the mouse of a user leaves the viewport borders of your website
Masonry
Layout elements in a grid, like a mason fitting stones in a wall
Tire
Tire is a lightweight JavaScript library for modern browsers
Design Blocks
A set of 170+ Bootstrap based design blocks ready to be used to create clean modern websites.
jQuery Evergreen
Small & fast DOM and event library for modern browsers.
Do Mtastic
Small & fast DOM and event library for modern browsers.
jQuery.nicescroll
nicescroll plugin for jquery - scrollbars like iphone/ipad
Laconic
Sane DOM Generation