🆚 Core-js vs. Fastly Polyfill
Compare technologies based on real-world usage data *- 📈 Core-js is three times more popular than Fastly Polyfill.
- 🌎 Core-js is more popular in the United States, the United Kingdom, and Japan.
- 🌍 Fastly Polyfill is more popular in Pakistan and Kuwait.
Core-js
Fastly PolyfillType
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.
Fastly Polyfill is a service that reads the User-Agent header of each request and returns polyfills appropriate for the requesting browser.
Pricing
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
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.
- ⬆️ 69th most popular in New Zealand in the JavaScript Libraries category.
- ⬆️ 74th most popular in Canada in the JavaScript Libraries category.
- ⬆️ 75th most popular in Brazil in the JavaScript Libraries category.
- ⬆️ 76th most popular in Norway in the JavaScript Libraries category.
- ⬆️ 77th most popular in Japan in the JavaScript Libraries category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Polyfill
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Picturefill
Babel
jQuery* According to recent studies, many of online reviews are fake.
When making your decision, it is better to rely on data that cannot be falsified.
Our service evaluates the popularity of technologies by the number of websites using them.