Gliojs
Exit popup easely. Detects if the mouse of a user leaves the viewport borders of your website
Packery
bin-packing layout library
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.
Porthole
A proxy to safely communicate to cross-domain iframes in javascript
jQuery.lazy
A lightweight, fast, feature-rich, powerful and highly configurable delayed content, image and background lazy loading plugin for jQuery & Zepto.
Double
jQuery plugin for hiring doubles
jScrollPane
Pretty, customisable, cross browser replacement scrollbars
Bind.js
bind.js - simple two way data binding to HTML and callbacks
Sizzle
A sizzlin' hot selector engine.
Viewport
Gets the dimensions of the Viewport and beyond.
Egjs Infinitegrid
A module used to arrange card elements including content infinitely on a grid layout.
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
Veinjs
Injects CSS into the document (it's a perfectly legal procedure)