Core JS
Category -
JavaScript Librariescore-js is a modular standard library for JavaScript. Core-js includes polyfills for ECMAScript up to 2021: promises, symbols, collections, iterators, typed arrays, many other features, ECMAScript proposals, some cross-platform WHATWG / W3C features and proposals like URL
We have discovered 1,837,801 live websites that are using Core JS.
Download Lead List
Download a sample report
Technology usage statistics
| Websites using Core JS | 1,837,801 websites |
| Most popular in the country |  United States |
| Market position in JavaScript Libraries | #21 |
| Market penetration in JavaScript Libraries | 5.93% |
| Most popular version | 3.2.1 |
Technology adoption
Recent changes in Core JS usage. (See
Core JS Usage Changes report)
| Websites that added Core JS | +1,956 |
| Websites that dropped Core JS | -2,530 |
| Websites that changed version of Core JS | 349 |
Core JS usage distribution by website rank
The correlation between utilization of Core JS technology and the relative popularity of websites
Geographical Distribution
Technology usage distribution by websites across the globe.Alternative Technologies
|
 Polyfill: Total 7,697,254 domains found using Polyfill |
 jQuery UI: Total 6,473,401 domains found using jQuery UI |
 React: Total 4,867,483 domains found using React |
 Swiper: Total 4,097,961 domains found using Swiper |
|
 html5shiv: Total 3,675,890 domains found using html5shiv |
|
 Modernizr: Total 2,732,231 domains found using Modernizr |
|
Russia
OWL Carousel: Total 2,567,114 domains found using OWL Carousel
GB
Canada
France
Germany
Australia
Brazil
Japan
Switzerland