🆚 Polyfill vs. SystemJS

Compare technologies based on real-world usage data *

📈 Polyfill is twice as popular as SystemJS.
🌎 Polyfill is more popular in the United States, Russia, and the United Kingdom.
🌍 SystemJS is more popular in Germany, Korea, and Indonesia.

Polyfill

SystemJS

Type

JavaScript library

About

Polyfill.io is an open-source JavaScript library that provides modern web API features to older browsers that do not natively support them.

After a supply chain attack in 2024 involving its cdn.polyfill.io domain, the service was discontinued and is now safely mirrored and maintained by Cloudflare under independent management.

SystemJS is a hookable, standards-based, dynamic ES module module loader.

Headquarters

Vancouver, Canada

Website

cdnjs.cloudflare.com/polyfill

GitHub #13

Pricing

Free ✔️Open source

Popularity

Determined by the number of sites using each technology.

The Polyfill JavaScript library is 2.4 times more popular than SystemJS.

Total websites

Market share

JavaScript Libraries

Popularity by country

Determined by the number of sites detected from each country.

Polyfill is more popular in the United States, Russia, and the United Kingdom, while SystemJS is more popular in Germany, Korea, and Indonesia.

United States

Russia

Germany

United Kingdom

Japan

Spain

Italy

France

Australia

Netherlands

Awards

🥈 Second most popular in Russia in the JavaScript Libraries category.
🥈 Second most popular in Belarus in the JavaScript Libraries category.
🥈 Second most popular in Jamaica in the JavaScript Libraries category.
🥈 Second most popular in Curacao in the JavaScript Libraries category.
🥈 Second most popular in the Turks and Caicos Islands in the JavaScript Libraries category.

🥈 Second most popular in Botswana in the JavaScript Libraries category.
🥈 Second most popular in Cape Verde in the JavaScript Libraries category.
🥉 Third most popular in Kazakhstan in the JavaScript Libraries category.
🥉 Third most popular in Kyrgyzstan in the JavaScript Libraries category.
⭐ 4th most popular in Russia in the JavaScript Libraries category.

Popularity by domain category

Determined by the number of sites in each category.

Polyfill is more popular among sites focused on business, marketing and merchandising, and online shopping, while SystemJS is more commonly used on public information, government and military, and sports sites.

Business

Marketing/Merchandising

Online Shopping

Education/Reference

Blogs/Wiki

Internet Services

Travel

Health

Entertainment

Non-Profit/Advocacy/NGO