🆚 ImagesLoaded vs. Polyfill
- 📈 Polyfill is as popular as ImagesLoaded.
- 🌍 Polyfill is more popular in the United Kingdom, Japan, and Australia.
- 🌎 ImagesLoaded is more popular in the United States, Germany, and Spain.
ImagesLoaded
PolyfillType
About
ImagesLoaded is an open-source 
JavaScript library that detects when images and 
CSS background images have finished loading, allowing code to run only after loading is complete.
It supports both vanilla JavaScript and 
jQuery, detects images within descendant elements, and reports loading progress and failures.
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.
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
- 🥉 Third most popular in Germany in the JavaScript Libraries category.
- 🥉 Third most popular in Spain in the JavaScript Libraries category.
- 🥉 Third most popular in France in the JavaScript Libraries category.
- 🥉 Third most popular in South Africa in the JavaScript Libraries category.
- 🥉 Third most popular in Austria 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.
- 🥉 Third most popular in the Netherlands in the JavaScript Libraries category.
- 🥉 Third most popular in Switzerland in the JavaScript Libraries category.
- 🥉 Third most popular in Belgium 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.
Metafizzy company profile🗃️ 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 3,629,123 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.