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Zitadel vs Janssen Project: catalog facts
Zitadel	Janssen Project
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	Self-hosted
Self-hostable, with deployment documentation Built-in MFA, passwordless and social login	OAuth and OpenID Connect Auth Server Agama low-code identity orchestration
Aimed at developers integrating identity into applications Running it yourself means operating an identity service	Many components make it complex to operate Aimed at organisations with dedicated identity engineers
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.