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Ory HydraZitadel
Freemium

Free to self-host; a hosted version is offered on Ory Network.

 Freemium

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

Self-hosted Web, Self-hosted
  • OpenID Certified OAuth and OIDC implementation
  • Works with an existing user management system
  • Self-hostable, with deployment documentation
  • Built-in MFA, passwordless and social login
  • Headless: you build login and consent screens yourself
  • Requires OAuth and OIDC knowledge to deploy
  • Aimed at developers integrating identity into applications
  • Running it yourself means operating an identity service
Self-hosted, Hosted service Self-hosted, Hosted service
Open source Open source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 23, 2026

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