🆚 Polyfill vs. Redux
- 📈 Polyfill is much more popular than Redux.
- 🌍 Polyfill is more popular in all countries.
PolyfillType
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.
Redux is an open-source JavaScript library for managing and sharing application state across user interface components.
It centralizes application state in a single store, updates state through actions and pure reducers, supports middleware for asynchronous logic, integrates with any UI framework, and provides official 
React bindings.
Headquarters
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
- 🥈 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.
- 🥉 Third most popular in the Netherlands in the JavaScript Libraries category.
- 🥉 Third most popular in Switzerland in the JavaScript Libraries category.
- ⬆️ 29th most popular in Iran in the JavaScript Libraries category.
- ⬆️ 31st most popular in Nigeria in the JavaScript Libraries category.
- ⬆️ 31st most popular in Kenya in the JavaScript Libraries category.
- ⬆️ 35th most popular in Morocco in the JavaScript Libraries category.
- ⬆️ 38th most popular in Saudi Arabia 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.
Modernizr
Regenerator
Core-js
Fastly Polyfill
Babel
jQuery
MooTools🗃️ 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 3,604,716 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.