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privacyIDEA vs Keycloak: catalog facts
privacyIDEA	Keycloak
Free Free and open source.	Free Free and open source under the Apache 2.0 licence.
Linux, Self-hosted	Self-hosted
Supports many token types in one server REST API for integration with other systems	Single sign-on and single sign-out across applications Supports OpenID Connect and SAML 2.0 identity brokering
Requires setting up and maintaining a server Aimed at administrators rather than end users	Setting it up and securing it takes real administrative effort More than most single-user homelabs need
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: Apache-2.0
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.