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Keycloak vs privacyIDEA: catalog facts
Keycloak	privacyIDEA
Free Free and open source under the Apache 2.0 licence.	Free Free and open source.
Self-hosted	Linux, Self-hosted
Single sign-on and single sign-out across applications Supports OpenID Connect and SAML 2.0 identity brokering	Supports many token types in one server REST API for integration with other systems
Setting it up and securing it takes real administrative effort More than most single-user homelabs need	Requires setting up and maintaining a server Aimed at administrators rather than end users
Self-hosted	Self-hosted
Open source	Open source
License: Apache-2.0	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 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.