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Zitadel vs Rauthy: catalog facts
Zitadel	Rauthy
Freemium Open source for self-hosting, with a hosted service that has a free starting plan and paid…	Free Free and open source.
Web, Self-hosted	Web, Self-hosted
Self-hostable, with deployment documentation Built-in MFA, passwordless and social login	OIDC and OAuth 2 single sign-on PAM support for Linux logins
Aimed at developers integrating identity into applications Running it yourself means operating an identity service	Smaller community than established IAM servers Requires running and maintaining your own server
Self-hosted, Hosted service	Self-hosted
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
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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