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Kanidm vs FreeRADIUS: catalog facts
Kanidm	FreeRADIUS
Free Free and open source.	Free Free and open source; commercial support is available from InkBridge Networks.
Linux, Self-hosted, Command line	Self-hosted, Command line
OAuth2, LDAP and passkeys in a single server Unix integration for Linux logins	Scales to tens of millions of users Modular design with many authentication back ends
Smaller ecosystem than long-established directory servers Requires running and securing your own server	Configuration is complex and text-file based Requires RADIUS and networking knowledge
Self-hosted	Downloadable app, Self-hosted
Open source	Open source
License not stated	License not stated
No account 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 October 1, 2026

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