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Zitadel vs Casdoor: catalog facts
Zitadel	Casdoor
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	Supports OAuth, OIDC, SAML, CAS, LDAP and SCIM Several MFA options including WebAuthn and TOTP
Aimed at developers integrating identity into applications Running it yourself means operating an identity service	Needs to be hosted and secured by you Wide feature scope, including AI agent features, adds complexity
Self-hosted, Hosted service	Self-hosted
Open source	Open source
License not stated	License: Apache-2.0
Not stated if an account is needed	No account 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 September 23, 2026

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