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Dex vs Apereo CAS: catalog facts
Dex	Apereo CAS
Free Free and open source.	Free Free and open source.
Linux, Self-hosted	Self-hosted
Connectors for LDAP, SAML, GitHub, Google, GitLab and Microsoft Single lightweight binary	Supports CAS, SAML, OAuth and OpenID Connect Many deployment options including Docker and Kubernetes
A federation layer, not a full user directory Configuration aimed at platform engineers	Complex to deploy and configure for small setups Requires Java servlet and build tooling knowledge
Self-hosted	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 October 1, 2026

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