Jquery Waypoints
Waypoints is a small jQuery plugin that makes it easy to execute a function whenever you scroll to an element.
jQuery.lazy
A lightweight, fast, feature-rich, powerful and highly configurable delayed content, image and background lazy loading plugin for jQuery & Zepto.
Gliojs
Exit popup easely. Detects if the mouse of a user leaves the viewport borders of your website
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
Porthole
A proxy to safely communicate to cross-domain iframes in javascript
Double
jQuery plugin for hiring doubles
Scrob Master
Master your scroll events.
jScrollPane
Pretty, customisable, cross browser replacement scrollbars
Bind.js
bind.js - simple two way data binding to HTML and callbacks
Voyeur.js
Voyeur is a tiny (1.2kb) Javascript library that lets you traverse and manipulate the DOM the way it should have been.
Egjs Infinitegrid
A module used to arrange card elements including content infinitely on a grid layout.
Veinjs
Injects CSS into the document (it's a perfectly legal procedure)
Resize Observer
Polyfills the ResizeObserver API.
Viewport
Gets the dimensions of the Viewport and beyond.
Html
A simple, extensible way to work directly with the DOM.