Slideout.js

A touch slideout navigation menu for your mobile web apps.

A global utility for tracking the current input method (mouse, keyboard or touch).

Partytown

A lazy-loaded library to help relocate resource intensive scripts into a web worker, and off of the main thread.

Closure Library

A low-level JavaScript library designed for building complex and scalable web applications.

A lightweight and flexible script that speeds up your web application by delaying the loading of your below-the-fold images, videos and iframes until they enter the viewport.

Beasties

A plugin that inlines your app's critical CSS and lazy-loads the rest.

YUI

A legacy, open-source JavaScript and CSS library for building interactive web applications with a focus on modular architecture and cross-browser consistency.

fullPage.js

A library that creates fullscreen scrolling websites with landscape sliders inside the sections of the page.

flv.js

An HTML5 Flash Video Player written in pure JavaScript without Flash.

Google Interactive Media Ads

Enable publishers to request ads from any VAST-compliant ad server and manage ad playback.

LinkedIn Platform

Enables websites to use LinkedIn functionality and includes plugins for signing in, sharing, recommending, and embedding profiles.

Animsition

A simple jQuery plugin for CSS animated page transitions.

Elegant, responsive, flexible and lightweight modal plugin for jQuery.

Flowplayer

A commercial video player, the older version of which is open source.

FastClick

A library for eliminating the 300ms delay between a physical tap and the firing of a click event on mobile browsers.

iScroll

A high-performance JavaScript library for smooth scrolling.

MathJax

An open-source JavaScript rendering engine for LaTeX, MathML, and AsciiMath notation that works in all modern browsers.

Mmenu.js

A commercial, customizable JavaScript plugin for creating app-like menus with sliding submenus and navbars.

Mapbox GL JS

A JavaScript library for building web maps powered by vector tiles and WebGL.

A lightweight, pure JavaScript library for responding to CSS media queries.

Green Popups

A commercial popup system with a drag-and-drop popup builder, 20+ popup elements, 200+ professionally designed templates, available as a WordPress plugin or standalone script.

Barba.js

A small and easy to use library to make websites run like a SPA by creating smooth transitions between pages.

A library that allows you to use AJAX, CSS transitions, WebSocket and Server Sent Events directly from HTML.

Lozad.js

Highly performant, light and configurable lazy loader for images and iframes in pure JS with no dependencies.

A lightweight, vanilla JavaScript parallax library.