Keycloak
Open-source identity and access management with SSO, OIDC, SAML and user federation.
- Identity & SSO
- Java
- Apache-2.0
- Docker
- Actively maintained
GitHub stats
- GitHub stars
- 37,156
- Forks
- 9,012
- Open issues
- 2,709
- Commits, last 12 months
- 3,157
- Last commit
- Oct 6, 2026
- Latest release
- 26.8.0Oct 1, 2026
- Created
- Jul 2, 2013
Data from the GitHub API, refreshed daily.
About Keycloak
Open-source identity and access management with SSO, OIDC, SAML and user federation. Keycloak is open source under the Apache-2.0 license and written mainly in Java, so you can read the code, run it on your own hardware and keep full control of your data.
The project has 37,156 stars and 9,012 forks on GitHub, with 3,157 commits over the last year. It ships a Docker image, which makes it a good fit for a small VPS or a home server running Docker Compose.
Topics
- keycloak
- oidc
- saml
Open-source alternative to
Keycloak can replace these commercial products. Compare every option on each page.
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What is Keycloak?
Keycloak is a free, open-source app you can host on your own server, listed in our Identity & SSO category. Open-source identity and access management with SSO, OIDC, SAML and user federation. The source code lives at github.com/keycloak/keycloak, where it has 37,156 stars.
Is Keycloak free and open source?
Yes. Keycloak is open-source software released under the Apache-2.0 license, so you can self-host it at no cost. You only pay for the server it runs on, and some projects also offer an optional paid cloud plan.
Can I run Keycloak with Docker?
Yes. Keycloak provides a Docker image, so you can run it on any Linux server with Docker and Docker Compose installed. The project README lists the image name and the environment variables to set.
What are the best alternatives to Keycloak?
Popular open-source alternatives to Keycloak include Authelia, authentik and SuperTokens. Keycloak itself is a self-hosted alternative to Auth0 and Okta.
Is Keycloak actively maintained?
The most recent commit to Keycloak was on Oct 6, 2026 with 3,157 commits in the past twelve months. The latest release is 26.8.0, published Oct 1, 2026. Check the open issues on GitHub to gauge how quickly maintainers respond.