Persist State
jQuery Ui widget that will transparently save the state of checkboxes, inputs, selects, etc in localStorage, restoring these on the user's next visit to the page.
Fragment.js
A tiny tool for easily loading html fragments and templates
Eqcss
EQCSS is a plugin that introduces Element Queries, Scoped CSS, a Parent selector, and responsive JavaScript to all browsers IE8 and up
Elements
E+lements is a minimal DOM Library for the prime framework.
Egjs Infinitegrid
A module used to arrange card elements including content infinitely on a grid layout.
Scrob Master
Master your scroll events.
Double
jQuery plugin for hiring doubles
Resize Observer
Polyfills the ResizeObserver API.
Veinjs
Injects CSS into the document (it's a perfectly legal procedure)
Viewport
Gets the dimensions of the Viewport and beyond.
Packery
bin-packing layout library
jScrollPane
Pretty, customisable, cross browser replacement scrollbars
Html
A simple, extensible way to work directly with the DOM.
Tapestry5 jQuery
Tapestry 5 jQuery integration. Fully replace Prototype and Scriptaculous with jQuery with as less as possible compatibility issues
Masonry
Layout elements in a grid, like a mason fitting stones in a wall
Hapi
The Simple, Secure Framework Developers Trust
Tether
A positioning engine to make overlays, tooltips and dropdowns better #hubspot-open-source