Compare software

FusionAuthZitadel
Freemium

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

 Freemium

Open source for self-hosting, with a hosted service that has a free starting plan and paid…

Web, Self-hosted Web, Self-hosted
  • Can run self-hosted, on-premises or air-gapped
  • Supports SSO, MFA, OAuth2 and OpenID Connect
  • Self-hostable, with deployment documentation
  • Built-in MFA, passwordless and social login
  • Aimed at developers building apps rather than managing staff accounts
  • Advanced features require paid plans
  • Aimed at developers integrating identity into applications
  • Running it yourself means operating an identity service
Self-hosted, Hosted service Self-hosted, Hosted service
Closed source Open source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked September 24, 2026

Checked September 23, 2026

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