⚡ JavaScript Libraries in Estonia

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.

Estonia is a Northern European country with a population of around 1.3 million people.

According to our statistics, JavaScript libraries are used on 74.9% of websites from Estonia.

Statistics based on 5K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is jQuery, which dominates the market with an overwhelming 85.1% share.
It is followed by Facebook SDK with 21.9% and Swiper with 20.3%.

jQuery 85.1%
Facebook SDK 21.9%
Swiper 20.3%
Polyfill 15.1%
🍪 JS Cookie 12.9%
ImagesLoaded 11.6%
jQuery BlockUI 11.1%
Modernizr 9.1%
Fancyapps 8.5%
Owl Carousel 8.5%
Lightbox 8.1%
React 7.9%
Underscore.js 7.7%
Slick 7.6%
Lottie 7.5%

🚀 Highlights

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

2. Facebook SDK ^(-1)
5. 🍪 JS Cookie ^(-3)
7. jQuery BlockUI ^(-9)
8. Modernizr ^(-4)
9. Fancyapps ^(-4)
11. Lightbox ^(-9)
13. Underscore.js ^(-4)
19. Regenerator ^(-4)
24. Select2 ^(-7)
25. jQuery Mousewheel ^(-7)

✨ Best JavaScript Libraries

Below is a more detailed list of the top 25 of the 233 JavaScript libraries used on sites from Estonia, 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	85.1%
2	Facebook SDK Menlo Park, California, United States A library that provides client-side tools for Social Plugins, Login, and Graph API calls. Free	21.9%
3	Swiper Weston, Florida, United States A modern touch slider library for building responsive sliders and carousels with hardware-accelerated transitions. FreeOpen source	20.3%
4	Polyfill An open-source JavaScript library that provides modern web API features to older browsers that do not natively support them. FreeOpen source	15.1%
5	🍪 JS Cookie Germany A simple, lightweight JavaScript library for handling browser cookies. FreeOpen source	12.9%
6	ImagesLoaded Alexandria, Virginia, United States A JavaScript library that detects when images have been loaded. FreeOpen source	11.6%
7	jQuery BlockUI Allows you to block user interaction on the page or part of the page. FreeOpen source	11.1%
8	Modernizr A JavaScript library that detects the availability of HTML, CSS and JavaScript features in the user's browser. FreeOpen source	9.1%
9	Fancyapps A commercial library of JavaScript UI components that includes lightbox, carousel, and pan/zoom components. €29+	8.5%
10	Owl Carousel Germany A touch enabled jQuery plugin that lets you create a beautiful, responsive carousel slider. FreeOpen source	8.5%
11	Lightbox San Francisco, California, United States The original lightbox library used to overlay images on top of the current page. FreeOpen source	8.1%
12	React Menlo Park, California, United States A popular open-source JavaScript library for building dynamic user interfaces, created by Facebook. FreeOpen source	7.9%
13	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	7.7%
14	Slick An open-source, fully responsive and accessible carousel library. FreeOpen source	7.6%
15	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	7.5%
16	Waypoints West Linn, Oregon, United States A library that makes it easy to execute a function whenever you scroll to an element. FreeOpen source	7.4%
17	Magnific Popup A responsive lightbox and dialog plugin for jQuery and Zepto. FreeOpen sourceLegacy	6.4%
18	jQuery Easing Wilberfoss, North Yorkshire, United Kingdom A jQuery plugin that adds 10+ advanced easing animations. FreeOpen source	5.8%
19	Regenerator Menlo Park, California, United States A JavaScript library from Facebook that allows the use of ES6 generators in older browsers. FreeOpen source	5.8%
20	MediaElement.js Dallas, 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). FreeOpen source	5.8%
21	FlexSlider San Francisco, California, United States A responsive jQuery slider created by the WooCommerce team and included with WooCommerce. FreeOpen source	5.5%
22	SystemJS Vancouver, Canada A hookable, standards-based, dynamic ES module module loader. FreeOpen source	5.5%
23	Isotope Alexandria, Virginia, United States A commercial JavaScript library for creating filterable and sortable grid layouts. FreeOpen source$25+	5.4%
24	Select2 A jQuery based replacement for select boxes. FreeOpen source	4.8%
25	jQuery Mousewheel A jQuery plugin that adds cross-browser mouse wheel support. FreeOpen sourceLegacy	4.2%

👉 See Also

🌎 JavaScript Libraries in other countries

🗃️ 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 5,261 websites from Estonia.
We currently track the presence of 310 JavaScript libraries across the web.
Of these, 233 were detected on websites from Estonia.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.