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SSSD vs Kanidm: catalog facts
SSSD	Kanidm
Free Free and open source.	Free Free and open source.
Linux	Linux, Self-hosted, Command line
Joins Linux machines to Active Directory, FreeIPA or LDAP Uses remote identities and domain policies for login	OAuth2, LDAP and passkeys in a single server Unix integration for Linux logins
Linux only Requires an existing directory or identity domain to connect to	Smaller ecosystem than long-established directory servers Requires running and securing your own server
Downloadable app	Self-hosted
Open source	Open source
License not stated	License not stated
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 1, 2026	Official website Full listing and sources Checked September 23, 2026

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