Is Keycloak free to use?

Yes, Keycloak is open source under the Apache-2.0 license. You can use, modify, and distribute it freely within the terms of the license.

Can I self-host Keycloak?

Yes, Keycloak can be self-hosted on your own infrastructure, giving you full control over your data and deployment.

What does Keycloak replace?

Keycloak is an open source alternative to Auth0. It provides similar functionality while being free and community-driven.

How popular is Keycloak?

Keycloak has 34k stars on GitHub, indicating a strong and active community of users and contributors.

Keycloak

Featured

Open source identity and access management — Auth0 alternative

Apache-2.0Self-hostableJavaJavaScriptAuthentication

identityssooauthldapsaml

Website GitHub Docs

Last updated: 2 days ago

34k

Stars

8.3k

Forks

323

Contributors

Apr 2026

Last Commit

Project Health

90/ 100

Excellent

Replaces These Proprietary Tools

Keycloak can be used as an alternative to these commercial products.

Auth0

Identity platform for authentication, authorization, and user management

freemium

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