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Casdoor vs Zitadel: catalog facts
Casdoor	Zitadel
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
Supports OAuth, OIDC, SAML, CAS, LDAP and SCIM Several MFA options including WebAuthn and TOTP	Self-hostable, with deployment documentation Built-in MFA, passwordless and social login
Needs to be hosted and secured by you Wide feature scope, including AI agent features, adds complexity	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: Apache-2.0	License not stated
No account 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 September 23, 2026

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