🆚 Polyfill vs. StyleX

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.

StyleX is an open-source styling system and CSS-in-JS library developed by Meta for building and maintaining large-scale web applications.

It compiles styles to static, collision-free atomic CSS rules at build time, supports type-safe style definitions, media queries, pseudo-classes, theming through shared variables, and is designed to eliminate runtime style injection overhead.

Popularity

Determined by the number of sites using each technology.

• 🥈 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.

• ⬆️ 151st most popular in Poland in the JavaScript Libraries category.
• ⬆️ 153rd most popular in the Czech Republic in the JavaScript Libraries category.
• ⬆️ 206th most popular in France in the JavaScript Libraries category.
• ⬆️ 206th most popular in Italy in the JavaScript Libraries category.
• ⬆️ 207th most popular in Germany in the JavaScript Libraries category.

Top sites

Top-ranked sites that use these technologies.

Compare alternatives

Technologies with similar characteristics.

• Polyfill vs. Regenerator
• Polyfill vs. Core-js
• Polyfill vs. Fastly Polyfill
• Polyfill vs. Babel
• Polyfill vs. ES6 Shim

• StyleX vs. Less.js
• StyleX vs. Emotion
• StyleX vs. Styled Components
• StyleX vs. Enquire.js
• StyleX vs. Tailwind CSS

• Polyfill technology profile

• StyleX technology profile
• Meta company profile