Kimbo.js
An ECMAScript 5 only-compatible JavaScript library.
Is Near
Calculates if the mouse position is near to a given element.
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.
Tapestry5 jQuery
Tapestry 5 jQuery integration. Fully replace Prototype and Scriptaculous with jQuery with as less as possible compatibility issues
jQuery.lazy
A lightweight, fast, feature-rich, powerful and highly configurable delayed content, image and background lazy loading plugin for jQuery & Zepto.
React Virtualized
React components for efficiently rendering large lists and tabular data
Vue Js Modal
:pizza: Simple to use, highly customizable, mobile friendly Vue.js 2.0+ modal.
Porthole
A proxy to safely communicate to cross-domain iframes in javascript
Zoom.js
zoom in on any element in the DOM
Atom
Atom javascript framewok
Defer.js
🥇 A super small, super efficient library that helps you lazy load almost everything like images, video, audio, iframes as well as stylesheets, and JavaScript.
Viewport
Gets the dimensions of the Viewport and beyond.
HtmlJs
HTML render engine and data binding (MVVM)
Gliojs
Exit popup easely. Detects if the mouse of a user leaves the viewport borders of your website
Do Mtastic
Small & fast DOM and event library for modern browsers.
Masonry
Layout elements in a grid, like a mason fitting stones in a wall
Minified.js
Replace jQuery or MooTools with a <4kB Library