⚡ JavaScript Libraries

JavaScript libraries are collections of prewritten code that provide reusable functions and components for building interactive features and handling common client-side tasks in web applications.

They help developers implement complex functionality with less custom code, providing various capabilities including DOM manipulation, event handling, UI components, asynchronous data requests, animations, form handling, and integration with external services.

According to our statistics, JavaScript libraries are used on 73.4% of all websites.
23% of these sites use only one JavaScript library, 20.3% use two, and 56.7% use three or more of them.

Statistics based on 3.9M+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the leading JavaScript libraries in 2026, based on market share.

The most popular is jQuery, which dominates the market with an overwhelming 86.2% share.
It is followed by Swiper with 20.8% and Facebook SDK with 15.1%.

🚀 Country Highlights

Here is a list of libraries that are especially popular in certain countries.
Differences between global and country rankings are shown in parentheses.

✨ Best JavaScript Libraries

Below is a more detailed list of the top 25 of the 317 JavaScript libraries we detect, ranked by their market share.

Available filters: 2D-Graphics 3D-Graphics Animation Carousel CSS Data Grids DOM Editors Lightbox Scroll SPA State Utility UI
RankNameMarket share
1
jQuery
San Francisco, California, United States

A fast, small, feature-rich JavaScript library designed to simplify HTML DOM tree traversal and manipulation, event handling, CSS animations, and Ajax.

FreeOpen source
2
Swiper
Weston, Florida, United States

A modern touch slider library for building responsive sliders and carousels with hardware-accelerated transitions.

FreeOpen source
3
Facebook SDK
Menlo Park, California, United States

A library that provides client-side tools for Social Plugins, Login, and Graph API calls.

Free
4
ImagesLoaded
Alexandria, Virginia, United States

An open-source JavaScript library that detects when images and CSS background images have finished loading, allowing code to run only after loading is complete.

FreeOpen source
5
Polyfill
London, United Kingdom

An open-source JavaScript library that provides modern web API features to older browsers that do not natively support them.

FreeOpen source
6
Slick
New York, United States

An open-source jQuery carousel library for creating responsive, touch-enabled, and keyboard-accessible content sliders.

FreeOpen source
7
React
Menlo Park, California, United States

A popular open-source JavaScript library for building dynamic user interfaces through reusable and stateful UI components, originally created by Facebook.

FreeOpen source
8
Owl Carousel
Germany

A deprecated open-source jQuery plugin for creating responsive, touch-enabled, and accessible carousel sliders.

FreeOpen sourceLegacy
9
Lottie
San Francisco, California, United States

An animation framework created by Airbnb that lets developers export Adobe After Effects animations as JSON and render them natively on mobile, desktop, and the web.

FreeOpen source
10
🍪 JS Cookie
Germany

An open-source, lightweight JavaScript library for managing browser cookies.

FreeOpen source
11
Modernizr
San Francisco, California, United States

An open-source feature detection library that identifies browser support for HTML, CSS, and JavaScript features and allows websites to adapt accordingly.

FreeOpen source
12
Fancyapps
Ogre, Latvia

A commercial JavaScript UI component library for creating lightboxes, carousels, and interactive image viewers.

€29+
13
Magnific Popup
Kyiv, Ukraine

A responsive lightbox and dialog plugin for jQuery and Zepto.js.

FreeOpen sourceLegacy
14
jQuery BlockUI
Rochester, New York, United States

The jQuery BlockUI plugin allows developers to block user interaction on the page or part of the page.

FreeOpen source
15
Waypoints
West Linn, Oregon, United States

An open-source JavaScript library that executes functions when users scroll to specific elements on a web page.

FreeOpen source
16
Underscore.js
Boston, Massachusetts, United States

A utility library for JavaScript that provides support for functional programming helpers (each, map, reduce, filter) without extending any built-in JavaScript objects.

FreeOpen source
17
jQuery Easing
Wilberfoss, North Yorkshire, United Kingdom

A jQuery plugin that adds 10+ advanced easing animations.

FreeOpen source
18
FlexSlider
San Francisco, California, United States

A responsive jQuery slider created by the WooCommerce team and included with WooCommerce.

FreeOpen source
19
Lightbox
San Francisco, California, United States

The original lightbox library used to overlay images on top of the current page.

FreeOpen source
20
SmartMenus
Plovdiv, Bulgaria

A jQuery plugin for creating mobile-first, responsive, and accessible list-based website menus that work on all devices.

FreeOpen source
21
MediaElement.js
Dallas, Texas, United States

A free, open-source HTML5 audio and video player that enables playback of MP4, WebM, and MP3 media files as well as streamed content in HLS and MPEG-DASH formats.

FreeOpen source
22
Isotope
Alexandria, Virginia, United States

A commercial JavaScript library for creating filterable and sortable grid layouts.

FreeOpen source$25+
23
Popper
Monza, Italy

An open-source JavaScript library for positioning and displaying floating UI elements such as tooltips, popovers, and dropdowns.

FreeOpen source
24
Web Font Loader
San Jose, California, United States

A JavaScript library that gives you added control when using linked fonts via @font-face.

FreeOpen source
25
Wow.js
United Kingdom

A JavaScript library that reveals CSS animations when you scroll.

FreeOpen source

👉 See Also

🗃️ About This Data