⚡ Authentication in Croatia

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.

Croatia is a Southeastern European country with a population of around 3.9 million people.

According to our statistics, authentication services are detected on 0.7% of websites from Croatia.

⭐ Most Popular in 2026

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

The most popular is Google Identity with an impressive share of 43.4%, followed by Facebook Login with 30.2% and Google Sign-In with 22.6%.

Google Identity 43.4%
Facebook Login 30.2%
Google Sign-In 22.6%
Sign In with Apple 13.2%
Amazon Cognito 7.5%
Shibboleth 5.7%
Microsoft Entra ID 3.8%
Microsoft Identity Platform 1.9%
Keycloak 1.9%
Firebase Authentication 1.9%
Sign In with LinkedIn 1.9%
Clerk 1.9%

🚀 Highlights

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

4. Sign In with Apple ^(-1)
5. Amazon Cognito ^(-3)
6. Shibboleth ^(-12)
7. Microsoft Entra ID ^(-6)
11. Sign In with LinkedIn ^(-5)
12. Clerk ^(-5)

✨ Best Authentication Services

Below is a more detailed list of 12 authentication services used on sites from Croatia, ranked by their market share.

Rank	Name	Market share
1	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	43.4%
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	30.2%
3	Google Sign-In Mountain View, California, United States A deprecated JavaScript library that has been superseded by Google Identity Services for Web. FreeLegacy	22.6%
4	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	13.2%
5	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$$$	7.5%
6	Shibboleth Bristol, United Kingdom A SAML-based single sign-on web application that is widely used in academic organizations. FreeOpen source€2,750+/year	5.7%
7	Microsoft Entra ID Redmond, Washington, United States A cloud-based identity and access management solution. Free$6+/user/month	3.8%
8	Microsoft Identity Platform Redmond, Washington, United States A cloud identity service that allows your users and customers to sign in to your applications using their Microsoft identities or social accounts. Free$6+/user/month	1.9%
9	Keycloak San Francisco, California, United States An open-source identity and access management solution that provides user federation, strong authentication, user management, fine-grained authorization, and more. FreeOpen source	1.9%
10	Firebase Authentication Mountain View, California, United States A backend authentication service that enables applications to sign in users using email and password, third-party identity providers, email links, and phone numbers. Free tier$$$	1.9%
11	Sign In with LinkedIn Mountain View, California, United States An authentication service that allows sites and applications to use the LinkedIn sign-in feature. Free	1.9%
12	Clerk San Francisco, California, United States An authentication and user management service for Next.js, Remix, Nuxt, React, Vue.js, and other frameworks that provides prebuilt interfaces and APIs to handle user identity, sessions, and access control. Free$25+/month	1.9%

👉 See Also

🌎 Authentication in other countries

Data is based on the analysis of 7,852 websites from Croatia.
Statistics were last calculated on March 30, 2026.
For details, see our methodology and disclaimer.