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Ory Hydra vs Casdoor: catalog facts
Ory Hydra	Casdoor
Freemium Free to self-host; a hosted version is offered on Ory Network.	Free Free and open source.
Self-hosted	Web, Self-hosted
OpenID Certified OAuth and OIDC implementation Works with an existing user management system	Supports OAuth, OIDC, SAML, CAS, LDAP and SCIM Several MFA options including WebAuthn and TOTP
Headless: you build login and consent screens yourself Requires OAuth and OIDC knowledge to deploy	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 October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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