🆚 Polyfill vs. Regenerator

📈 Polyfill is much more popular than Regenerator.
🌍 Polyfill is more popular in all countries.

Statistics based on 3.8M+ analyzed websites. About this data

Polyfill

Regenerator

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.

It was originally owned by the Financial Times web team, then moved under community management, and 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 and Fastly.

Regenerator is a JavaScript library from Facebook that allows the use of ES6 generators in older browsers.

Headquarters

London, United Kingdom

Menlo Park, California, United States

Website

facebook.github.io/regenerator/

Pricing

Free ✔️ Open source

Popularity

Determined by the number of sites using each technology.

The Polyfill JavaScript library is 6 times more popular than Regenerator.

Total websites

Market share

JavaScript Libraries

Popularity by country

Determined by the number of sites detected from each country.

Polyfill is more popular than Regenerator in all countries.

United States

Japan

Russia

United Kingdom

Spain

Italy

France

Germany

Australia

Netherlands

Awards

🥈 Second most popular in Russia in the JavaScript Libraries category.
🥈 Second most popular in Belarus in the JavaScript Libraries category.
🥉 Third most popular in Switzerland in the JavaScript Libraries category.
🥉 Third most popular in Kazakhstan in the JavaScript Libraries category.
⭐ 4th most popular in the United Kingdom in the JavaScript Libraries category.

⬆️ 22nd most popular in Japan in the JavaScript Libraries category.
⬆️ 23rd most popular in Israel in the JavaScript Libraries category.
⬆️ 27th most popular in Vietnam in the JavaScript Libraries category.
⬆️ 27th most popular in Iran in the JavaScript Libraries category.
⬆️ 29th most popular in Lithuania in the JavaScript Libraries category.

Popularity by domain category

Determined by the number of sites in each category.

Polyfill is more popular than Regenerator in all market segments.

Business

Marketing/Merchandising

Online Shopping

Education/Reference

Blogs/Wiki

Internet Services

Travel

Health

Entertainment

Non-Profit/Advocacy/NGO

Top sites

Top-ranked sites that use these technologies.

Name

Rank

#19

#38

#55

#83

#90

Name

Rank

#907

#1,066

#1,290

#1,636

#1,711