Compare software

RauthyZitadel
Free

Free and open source.

 Freemium

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

Web, Self-hosted Web, Self-hosted
  • OIDC and OAuth 2 single sign-on
  • PAM support for Linux logins
  • Self-hostable, with deployment documentation
  • Built-in MFA, passwordless and social login
  • Smaller community than established IAM servers
  • Requires running and maintaining your own server
  • Aimed at developers integrating identity into applications
  • Running it yourself means operating an identity service
Self-hosted 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 1, 2026

Checked September 23, 2026

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