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Apereo CASKeycloak
Free

Free and open source.

 Free

Free and open source under the Apache 2.0 licence.

Self-hosted Self-hosted
  • Supports CAS, SAML, OAuth and OpenID Connect
  • Many deployment options including Docker and Kubernetes
  • Single sign-on and single sign-out across applications
  • Supports OpenID Connect and SAML 2.0 identity brokering
  • Complex to deploy and configure for small setups
  • Requires Java servlet and build tooling knowledge
  • Setting it up and securing it takes real administrative effort
  • More than most single-user homelabs need
Self-hosted Self-hosted
Open source Open source
License not stated License: Apache-2.0
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 1, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.