🆚 Core-js vs. ES6 Shim
- 📈 Core-js is much more popular than ES6 Shim.
- 🌍 Core-js is more popular in all countries.
Statistics based on 3.3M+ analyzed websites. About this data
Core-jsType
JavaScript library
JavaScript library
About
Core-js is a modular standard library for 
JavaScript that provides polyfills for ECMAScript up to 2024: promises, symbols, collections, iterators, typed arrays, and proposals.
Provides compatibility shims so that legacy JavaScript engines behave as closely as possible to ECMAScript 6 (Harmony).
Pricing
Free ✔️Open source
Free ✔️Open source
Categories
Popularity
Determined by the number of sites using each technology.
The Core-js JavaScript library is 69 times more popular than ES6 Shim.
Total websites
Market share
JavaScript Libraries
Popularity by country
Determined by the number of sites detected from each country.
Core-js is more popular than ES6 Shim in all countries.
United States
United Kingdom
Japan
Germany
Canada
Brazil
Australia
France
India
Switzerland
Awards
- ⬆️ 41st most popular in Costa Rica in the JavaScript Libraries category.
- ⬆️ 42nd most popular in Israel in the JavaScript Libraries category.
- ⬆️ 44th most popular in Switzerland in the JavaScript Libraries category.
- ⬆️ 45th most popular in Canada in the JavaScript Libraries category.
- ⬆️ 45th most popular in New Zealand in the JavaScript Libraries category.
- ⬆️ 52nd most popular in France in the Legacy category.
- ⬆️ 59th most popular in Germany in the Legacy category.
- ⬆️ 62nd most popular in the United States in the Legacy category.
- ⬆️ 223rd most popular in France in the JavaScript Libraries category.
- ⬆️ 235th most popular in the United States in the JavaScript Libraries category.
Popularity by domain category
Determined by the number of sites in each category.
Core-js is more popular than ES6 Shim in all market segments.
Business
Marketing/Merchandising
Blogs/Wiki
Education/Reference
Entertainment
Online Shopping
Travel
Sports
Non-Profit/Advocacy/NGO
Motor Vehicles
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Polyfill
Regenerator
Picturefill
Fastly Polyfill
Babel🗃️ 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 3,375,483 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.