⚡ JavaScript Libraries in Iceland

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.

Iceland is a Northern European island country with a population of over 380 thousand people.

According to our statistics, JavaScript libraries are used on 67.2% of websites from Iceland.

Statistics based on 3K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is jQuery, which dominates the market with an overwhelming 80.9% share.
It is followed by Facebook SDK with 21.2% and React with 17.3%.

jQuery 80.9%
Facebook SDK 21.2%
React 17.3%
Swiper 16.6%
Polyfill 12.2%
🍪 JS Cookie 12.1%
ImagesLoaded 12%
Lottie 10.2%
jQuery BlockUI 9.6%
Underscore.js 8.8%
Waypoints 7.9%
Slick 6.8%
MediaElement.js 6.3%
Modernizr 5.9%
Owl Carousel 5.9%

🚀 Highlights

Here is a list of the top libraries that are more popular in Iceland than worldwide.
Differences between global and country rankings are shown in parentheses.

2. Facebook SDK ^(-1)
3. React ^(-6)
6. 🍪 JS Cookie ^(-2)
8. Lottie ^(-2)
9. jQuery BlockUI ^(-6)
10. Underscore.js ^(-7)
13. MediaElement.js ^(-3)
16. SmartMenus ^(-6)
18. Regenerator ^(-5)
22. Less.js ^(-59)

✨ Best JavaScript Libraries

Below is a more detailed list of the top 25 of the 214 JavaScript libraries used on sites from Iceland, ranked by their market share.

Rank	Name	Market 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	80.9%
2	Facebook SDK Menlo Park, California, United States A library that provides client-side tools for Social Plugins, Login, and Graph API calls. Free	21.2%
3	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	17.3%
4	Swiper Weston, Florida, United States A modern touch slider library for building responsive sliders and carousels with hardware-accelerated transitions. FreeOpen source	16.6%
5	Polyfill An open-source JavaScript library that provides modern web API features to older browsers that do not natively support them. FreeOpen source	12.2%
6	🍪 JS Cookie Germany An open-source, lightweight JavaScript library for managing browser cookies. FreeOpen source	12.1%
7	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	12%
8	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	10.2%
9	jQuery BlockUI The jQuery BlockUI plugin allows you to block user interaction on the page or part of the page. FreeOpen source	9.6%
10	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	8.8%
11	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	7.9%
12	Slick An open-source jQuery carousel library for creating responsive, touch-enabled, and keyboard-accessible content sliders. FreeOpen source	6.8%
13	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	6.3%
14	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	5.9%
15	Owl Carousel Germany A deprecated open-source jQuery plugin for creating responsive, touch-enabled, and accessible carousel sliders. FreeOpen sourceLegacy	5.9%
16	SmartMenus Plovdiv, Bulgaria A jQuery plugin for creating mobile-first, responsive, and accessible list-based website menus that work on all devices. FreeOpen source	5.5%
17	Fancyapps Ogre, Latvia A commercial JavaScript UI component library for creating lightboxes, carousels, and interactive image viewers. €29+	5.4%
18	Regenerator Menlo Park, California, United States A JavaScript library from Facebook that allows the use of ES6 generators in older browsers. FreeOpen source	5%
19	Magnific Popup A responsive lightbox and dialog plugin for jQuery and Zepto.js. FreeOpen sourceLegacy	4.8%
20	FlexSlider San Francisco, California, United States A responsive jQuery slider created by the WooCommerce team and included with WooCommerce. FreeOpen source	4.5%
21	Lightbox San Francisco, California, United States The original lightbox library used to overlay images on top of the current page. FreeOpen source	4.3%
22	Less.js A JavaScript library that converts Less styles to CSS styles. FreeOpen source	4.2%
23	Isotope Alexandria, Virginia, United States A commercial JavaScript library for creating filterable and sortable grid layouts. FreeOpen source$25+	4.2%
24	Popper Monza, Italy A JavaScript library used for positioning and displaying tooltips, popovers, and dropdowns. FreeOpen source	4.1%
25	jQuery Easing Wilberfoss, North Yorkshire, United Kingdom A jQuery plugin that adds 10+ advanced easing animations. FreeOpen source	4%

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 3,058 websites from Iceland.
We currently track the presence of 312 JavaScript libraries across the web.
Of these, 214 were detected on websites from Iceland.
Statistics were last calculated on August 4, 2026.
For more details, see our methodology and disclaimer.