🆚 Polyfill vs. Slick
Polyfill is as popular as Slick.- Polyfill is more popular in the United States, the United Kingdom, and Russia.
Slick is more popular in Japan, Germany, and India.
Type
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.
Slick is an open-source 
jQuery carousel library for creating responsive, touch-enabled, and keyboard-accessible content sliders.
It offers more than 50 configuration options, responsive breakpoint-specific settings, infinite looping, lazy loading, variable-width and vertical layouts, synchronized sliders, and 
CSS3 transitions.
Headquarters
Website
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.
- 🥉 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.
- 🥇 Most popular in Japan in the Sliders category.
- 🥈 Second most popular in the United States in the Sliders category.
- 🥈 Second most popular in Japan in the JavaScript Libraries category.
- 🥈 Second most popular in the United Kingdom in the Sliders category.
- 🥈 Second most popular in Germany in the Sliders 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.
🗃️ 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 4,046,631 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.