Flowplayer

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

Barba.js

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

Quicklink

Faster subsequent page-loads by prefetching or prerendering in-viewport links during idle time.

SignalR

A library for ASP.NET that enables real-time two-way communication between servers and clients.

Lite YouTube

A faster YouTube embed.

BaguetteBox.js

Simple and easy to use lightbox script written in pure JavaScript.

A lightbox library for photos and videos, last released in 2014.

i18next

An internationalization framework written in and for JavaScript.

jsPDF

An open-source library for generating PDFs in JavaScript.

HLS.js

A JavaScript library that implements an HTTP Live Streaming client, using HTML5 video and MediaSource extensions.

Cufon

A discontinued JavaScript library that performs text replacement on web pages, using the canvas element and VML to render fancy fonts.

SheetJS

A JavaScript library for reading and writing data from spreadsheets.

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.

Fingerprint

A commercial browser fingerprinting solution that queries browser attributes and computes a hashed visitor identifier from them.

Gijgo

An open-source set of JavaScript controls that includes grid, tree, dialog, dropdown, slider and date/time pickers.

Floating UI

A Popper v2 successor library for positioning floating elements such as tooltips, popovers, and dropdowns.

Dash.js

A JavaScript player library for the playback of MPEG-DASH.

StyleX

An open-source styling system and CSS-in-JS library developed by Meta for building and maintaining large-scale web applications.

Google Interactive Media Ads

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

YUI

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

Micromodal.js

A tiny JavaScript library for creating accessible modal dialogs.

Socket.io

A library that enables real-time, bidirectional and event-based communication between the browser and the server.

Prefix-free

A legacy script that adds browser prefixes to CSS code when needed for old browsers.

Air Datepicker

A customizable datepicker written in pure JavaScript without any dependencies.

Partytown

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