🆚 Facebook SDK vs. Polyfill

Compare technologies based on real-world usage data *

📈 Facebook SDK is slightly more popular than Polyfill.
🌎 Facebook SDK is more popular in the United States, Japan, and Italy.
🌍 Polyfill is more popular in the United Kingdom, Australia, and Spain.

Facebook SDK

Polyfill

Type

JavaScript library

About

Facebook SDK is a library that provides client-side tools for Social Plugins, Facebook Login, and Graph API calls.

It enables loading Social Plugins such as Like, Share, or Comments buttons, initiating Facebook Login with configurable permissions, and opening dialogs for sharing, fetching and updating data via Graph API endpoints.

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.

Headquarters

Menlo Park, California, United States

Website

developers.facebook.com

cdnjs.cloudflare.com/polyfill

Pricing

Free ✔️

Free ✔️Open source

Popularity

Determined by the number of sites using each technology.

The Facebook SDK JavaScript library is 1.2 times more popular than Polyfill.

Total websites

Market share

JavaScript Libraries

Popularity by country

Determined by the number of sites detected from each country.

Facebook SDK is more popular in the United States, Japan, and Italy, while Polyfill is more popular in the United Kingdom, Australia, and Spain.

United States

United Kingdom

Japan

Italy

Australia

Spain

Germany

France

Brazil

Russia

Awards

🥈 Second most popular in Poland in the JavaScript Libraries category.
🥈 Second most popular in Vietnam in the JavaScript Libraries category.
🥈 Second most popular in Ukraine in the JavaScript Libraries category.
🥈 Second most popular in the Czech Republic in the JavaScript Libraries category.
🥈 Second most popular in Hungary 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.

Facebook SDK is more popular among sites focused on business, online shopping, and education and reference, while Polyfill is more commonly used on marketing and merchandising, travel, and art, culture and heritage sites.

Business

Online Shopping

Marketing/Merchandising

Education/Reference

Blogs/Wiki

Internet Services

Entertainment

Health

General News

Fashion/Beauty