⚡ Authentication in Korea

Authentication services enable developers to integrate third-party authentication into their websites and applications, allowing users to sign in with accounts from identity providers such as Google, Facebook, Apple, Microsoft, and Discord.

Korea is an East Asian country with a population of around 52 million people.

According to our statistics, authentication services are detected on 0.8% of websites from Korea.

Statistics based on 26K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top authentication services in Korea in 2026, based on market share.

The most popular is Sign In with Apple with an impressive share of 43.6%, followed by Facebook Login with 21.4% and Google Identity with 20.9%.

Sign In with Apple 43.6%
Facebook Login 21.4%
Google Identity 20.9%
Google Sign-In 16.4%
Firebase Authentication 2.7%
Supabase 2.7%
Auth.js 1.8%
Keycloak 1.4%
Microsoft Identity Platform 0.9%
Amazon Cognito 0.9%
Okta 0.9%
Auth0 0.5%
Login with Discord 0.5%

🚀 Highlights

Here is a list of the top services that are more popular in Korea than worldwide.
Differences between global and country rankings are shown in parentheses.

1. Sign In with Apple ^(-4)
5. Firebase Authentication ^(-4)
7. Auth.js ^(-7)
8. Keycloak ^(-2)
13. Login with Discord ^(-6)

✨ Best Authentication Services

Below is a more detailed list of 13 authentication services used on sites from Korea, ranked by their market share.

Rank	Name	Market share
1	Sign In with Apple Cupertino, California, United States A service provided by Apple that allows users to sign in to apps and websites using their Apple IDs. $99/year	43.6%
2	Facebook Login Menlo Park, California, United States A convenient way for Facebook's billions of global users to log into your app or website. Free	21.4%
3	Google Identity Mountain View, California, United States A suite of services and APIs from Google that handles user sign-up, sign-in, and authorization across web and mobile apps. Free	20.9%
4	Google Sign-In Mountain View, California, United States A deprecated JavaScript library that has been superseded by Google Identity services for Web. FreeLegacy	16.4%
5	Firebase Authentication Mountain View, California, United States A backend authentication service that enables applications to sign in users using email and password, third-party identity providers, email links, and phone numbers. Free tier$$$	2.7%
6	Supabase Singapore An open-source backend-as-a-service platform based on PostgreSQL. FreeOpen source$25+/month	2.7%
7	Auth.js San Francisco, California, United States An open-source authentication solution that integrates with Next.js, Nuxt, Qwik, and other modern JavaScript frameworks to handle user sign-in, session management, and access control. FreeOpen source	1.8%
8	Keycloak San Francisco, California, United States An open-source identity and access management solution that provides user federation, strong authentication, user management, fine-grained authorization, and more. FreeOpen source	1.4%
9	Microsoft Identity Platform Redmond, Washington, United States A cloud identity service that allows your users and customers to sign in to your applications using their Microsoft identities or social accounts. Free$6+/user/month	0.9%
10	Amazon Cognito Seattle, Washington, United States A user identity service by Amazon Web Services that lets you add user sign-up, sign-in, and access control to your web and mobile apps. Free tier$$$	0.9%
11	Okta San Francisco, California, United States A cloud-based identity and access management platform built around a centralized directory of user and customer profiles. $1,500+/year	0.9%
12	Auth0 San Francisco, California, United States A cloud-based identity and authentication management platform that allows developers to add authentication to their applications. Free$35+/month	0.5%
13	Login with Discord San Francisco, California, United States User authentication with Discord credentials. Free	0.5%

👉 See Also

🌎 Authentication in other countries

🗃️ 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 26,673 websites from Korea.
We currently track the presence of 20 authentication services across the web.
Of these, 13 were detected on websites from Korea.
Statistics were last calculated on May 6, 2026.
For more details, see our methodology and disclaimer.