An open-source JavaScript tooltip library with different styles, all kinds of triggers and CSS3 animations.

MediumEditor

An open-source WYSIWYG text editor inspired by the inline toolbar used on the Medium.com publishing platform.

Ouibounce

A small library enabling you to display a modal before a user leaves your website.

UAParser.js

A JavaScript library to detect the user's browser, engine, OS, CPU, and device type/model.

Mo.js

An open-source, retina-ready, modular JavaScript motion graphics library.

Motion UI

A Sass library for creating flexible CSS transitions and animations.

iframe-resizer

The iframe-resizer library resizes iframes to fit the size of the content.

Partytown

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

Prefix-free

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

Zepto

A lightweight and modular open-source JavaScript library with a largely jQuery-compatible API, designed for modern browsers and optimized for fast execution and small file size.

Siema

A lightweight carousel with no dependencies and no styling.

Bootstrap Table

A jQuery plugin for HTML tables that adds sorting, pagination, filtering, and server-side processing to web applications.

Toast UI

An open-source JavaScript UI library that consists of a markdown editor, image editor, powerful chart, grid, calendar and other components.

Fingerprint

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

Bootstrap Progressbar

A jQuery plugin that allows you to animate the Bootstrap 2 and 3 progressbar with JavaScript.

SoundJS

A library for working with audio that provides a consistent API for loading and playing audio on different browsers and devices.

JsTemplate

A small JavaScript library that allows you to create templates like PHP and ASP with JavaScript.

Marked

A fast, lightweight, low-level markdown parser and compiler.

A responsive and customizable lightbox library.

MobX

A signal based library that makes state management simple and scalable by transparently applying functional reactive programming.

RxJS

A library for reactive programming of asynchronous and event-driven applications using observable sequences.

Phaser

A fast 2D game framework with support for Canvas and WebGL rendering for building HTML5 games for desktop and mobile web browsers.

Lit

An open-source JavaScript library for building fast and lightweight web components, developed as the successor to Google's Polymer project.

i18next

An internationalization framework written in and for JavaScript.

Canvas Confetti

A performant confetti animation library for the browser.