Compare software

KeycloakFusionAuth
Free

Free and open source under the Apache 2.0 licence.

 Freemium

Free Community edition to download, with paid plans and hosted deployments.

Self-hosted Web, Self-hosted
  • Single sign-on and single sign-out across applications
  • Supports OpenID Connect and SAML 2.0 identity brokering
  • Can run self-hosted, on-premises or air-gapped
  • Supports SSO, MFA, OAuth2 and OpenID Connect
  • Setting it up and securing it takes real administrative effort
  • More than most single-user homelabs need
  • Aimed at developers building apps rather than managing staff accounts
  • Advanced features require paid plans
Self-hosted Self-hosted, Hosted service
Open source Closed source
License: Apache-2.0 License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Works offline

Checked September 23, 2026

Checked September 24, 2026

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