🆚 Emotion vs. Polyfill
- 📈 Polyfill is much more popular than Emotion.
- 🌍 Polyfill is more popular in all countries.
Emotion
PolyfillType
About
Emotion is an open-source 
CSS-in-JS library for writing and managing styles with 
JavaScript and 
TypeScript that can be used both with 
React and in a framework-agnostic way.
It supports object and template literal syntax, automatic vendor prefixing, source maps, server-side rendering, nested selectors, and theming, and can optimize generated styles through compile-time transformations using its 
Babel integration.
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.
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
- ⬆️ 46th most popular in Uzbekistan in the JavaScript Libraries category.
- ⬆️ 49th most popular in Norway in the JavaScript Libraries category.
- ⬆️ 57th most popular in Korea in the JavaScript Libraries category.
- ⬆️ 61st most popular in Sweden in the JavaScript Libraries category.
- ⬆️ 63rd most popular in Ireland in the JavaScript Libraries category.
- 🥈 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.
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.
Styled Components
StyleX
Tailwind CSS
Regenerator
Core-js
Fastly Polyfill🗃️ 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 3,531,690 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.