⚡ JavaScript Libraries

JavaScript libraries are collections of prewritten JavaScript code with reusable functions and components that enable developers to simplify complex tasks, enhance website interactivity, and accelerate application development.

According to our statistics, JavaScript libraries are used on 77.5% of all websites.
23.4% of these sites use only one JavaScript library, 19.9% use two, and 56.7% use three or more of them.

⭐ Most Popular in 2025

The following chart shows the leading JavaScript libraries in 2025, based on market share.

The most popular is jQuery, which dominates the market with an overwhelming 88.7% share.
It is followed by Swiper with 18.9% and Polyfill with 14.2%.

jQuery 88.7%
Swiper 18.9%
Polyfill 14.2%
Facebook SDK 13.6%
ImagesLoaded 11.7%
Owl Carousel 9.8%
Waypoints 9.7%
Slick 9.4%
Regenerator 8.3%
🍪 JS Cookie 8.1%
Modernizr 8.1%
Lottie 7.4%
MediaElement.js 7.1%
Magnific Popup 6.6%
Fancyapps 6.5%

You can also drill down by country:

Canada

🚀 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.

Polyfill is #2 in the United Kingdom ^(-1)
Facebook SDK is #2 in Poland ^(-2)
Owl Carousel is #2 in India ^(-4)
Slick is #2 in Japan ^(-6)
Magnific Popup is #2 in Tanzania ^(-12)
SystemJS is #2 in Russia ^(-21)
ImagesLoaded is #3 in Germany ^(-2)
Waypoints is #3 in Pakistan ^(-4)
🍪 JS Cookie is #3 in Iran ^(-7)
Lottie is #3 in Israel ^(-9)

✨ Best JavaScript Libraries

Below is a more detailed list of the top 25 of the 304 JavaScript libraries we detect, ranked by their market share.

Rank	Name	Market share
1	jQuerySan 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.	88.7%
2	SwiperWeston, Florida, United States A modern free and open source mobile touch slider with hardware accelerated transitions.	18.9%
3	Polyfill An open-source JavaScript library that provides modern web API features to older browsers that do not natively support them.	14.2%
4	Facebook SDKMenlo Park, California, United States A library that provides client-side tools for Social Plugins, Facebook Login, and Graph API calls.	13.6%
5	ImagesLoadedAlexandria, Virginia, United States A JavaScript library that detects when images have been loaded.	11.7%
6	Owl CarouselGermany A touch enabled jQuery plugin that lets you create a beautiful, responsive carousel slider.	9.8%
7	WaypointsWest Linn, Oregon, United States A library that makes it easy to execute a function whenever you scroll to an element.	9.7%
8	Slick An open source, fully responsive and accessible carousel library.	9.4%
9	RegeneratorMenlo Park, California, United States A JavaScript library from Facebook that allows the use of ES6 generators in older browsers.	8.3%
10	🍪 JS CookieGermany A simple, lightweight JavaScript library for handling browser cookies.	8.1%
11	Modernizr A JavaScript library that detects the availability of HTML, CSS and JavaScript features in the user's browser.	8.1%
12	LottieSan Francisco, California, United States An animation framework created by Airbnb that allows you to export Adobe After Effects animations as JSON and render them natively on mobile and on the web.	7.4%
13	MediaElement.jsDallas, Texas, United States A free audio and video player with support for media files (MP4, WebM, MP3), streaming content (HLS, Dash), and embeddable players (YouTube, Facebook, Vimeo, Twitch, SoundCloud, etc).	7.1%
14	Magnific Popup A responsive lightbox and dialog plugin for jQuery and Zepto.js.	6.6%
15	Fancyapps A commercial library of JavaScript UI components that includes lightbox, carousel, and pan/zoom components.	6.5%
16	ReactMenlo Park, California, United States A popular open-source JavaScript library for building dynamic user interfaces, created by Facebook.	6.5%
17	FlexSliderSan Francisco, California, United States A responsive jQuery slider created by the WooCommerce team and included with WooCommerce.	6.3%
18	jQuery EasingWilberfoss, North Yorkshire, United Kingdom A jQuery plugin that adds 10+ advanced easing animations.	6.2%
19	jQuery BlockUI Allows you to block user interaction on the page or part of the page.	6.2%
20	Underscore.jsBoston, 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.	6.2%
21	IsotopeAlexandria, Virginia, United States A commercial JavaScript library for creating filterable and sortable grid layouts.	5.7%
22	LightboxSan Francisco, California, United States The original lightbox library used to overlay images on top of the current page.	5.5%
23	SystemJSVancouver, Canada A hookable, standards-based, dynamic ES module module loader.	5.1%
24	Wow.js A JavaScript library that reveals CSS animations when you scroll.	4.7%
25	SmartMenus A jQuery plugin for creating mobile-first, responsive, and accessible list-based website menus that work on all devices.	4.6%

👉 See Also

🔗 Links
- JavaScript library

Data is based on the analysis of 2,565,167 websites.
Statistics were last calculated on November 1, 2025.
For details, see our methodology and disclaimer.