Phantomjs
Scriptable Headless WebKit
Isotope
An exquisite jQuery plugin for magical layouts. Enables filtering, sorting, and dynamic layouts.
Ac Colors
ac-colors is a reactive JavaScript color library that can freely convert between RGB, HSL, HEX, XYZ, LAB, LCHab, LUV, and LCHuv, as well as handle random color generation and contrast ratio calculation.
Prefixfree
Break free from CSS prefix hell!
Jquery Sieve
Sieve is a jQuery plugin allows you to quickly add an interactive search filter to any block of content.
Vissense
A utility library for observing visibility changes of DOM elements.
Scrob Master
Master your scroll events.
Masonry
Layout elements in a grid, like a mason fitting stones in a wall
Aurora
Hate Cookies? Introducing Aurora, 100% Cookie-Free Open Website Analytics. Collect Anonymous Data. Make your Audience Happy Now!
Motionia
Motionia is a lightweight simplified on demand animation library! https://git.io/motionia
Tapestry5 jQuery
Tapestry 5 jQuery integration. Fully replace Prototype and Scriptaculous with jQuery with as less as possible compatibility issues
Do Mtastic
Small & fast DOM and event library for modern browsers.
Is Near
Calculates if the mouse position is near to a given element.
Fastdom
Eliminates layout thrashing by batching DOM read/write operations
Polymer
Leverage the future of the web platform today.
Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source
Mootools Core
MooTools Core Repository