Keycloak vs Univention Corporate Server
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Keycloak
Open-source identity and access management for modern apps
VS
Univention Corporate Server
Integrated identity and infrastructure management platform
| Feature | Keycloak | Univention Corporate Server |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | AGPL-3.0 |
| Language | Java | Python |
| Setup difficulty | Hard | Hard |
| Min. RAM | 1,024 MB | 2,048 MB |
| Deployment | docker, kubernetes, bare-metal | bare-metal, one-click |
| GitHub stars | ★ 36,058 | ★ 293 |
| First released | 2014 | 2004 |
| Replaces | Okta, Auth0, Microsoft Entra ID | Microsoft Active Directory |
Why pick each one
Choose Univention Corporate Server if…
- Comprehensive platform
- Web-based administration
Frequently asked questions
Is Keycloak or Univention Corporate Server better?
Neither is universally better. Keycloak has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are Keycloak and Univention Corporate Server free and open-source?
Yes. Keycloak is licensed under Apache-2.0 and Univention Corporate Server under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Keycloak and Univention Corporate Server with Docker?
Keycloak: yes. Univention Corporate Server: check the project docs for container support.