🆚 JS Cookie vs. Polyfill
- 📈 Polyfill is noticeably more popular than JS Cookie.
- 🌎 Polyfill is more popular in the United States, the United Kingdom, and Spain.
- 🌍 JS Cookie is more popular in Vietnam, Iran, and Turkey.
PolyfillType
About
JS Cookie is an open-source, lightweight 
JavaScript library for managing browser cookies.
It provides a simple API for setting, retrieving, and removing cookies, supports custom encoding and decoding, and is less than 800 bytes when gzipped.
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
GitHubPricing
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 Iran in the JavaScript Libraries category.
- 🥉 Third most popular in Afghanistan in the JavaScript Libraries category.
- 🥉 Third most popular in El Salvador in the JavaScript Libraries category.
- ⭐ 4th most popular in Estonia in the JavaScript Libraries category.
- ⭐ 5th most popular in Vietnam 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 Jamaica 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.
🗃️ 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 3,655,631 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.