FusionAuth vs OpenUnison
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?
FusionAuth
Complete authentication and authorization platform
VS
OpenUnison
Identity management and SSO portal for Kubernetes
| Feature | FusionAuth | OpenUnison |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Dockerfile | Less |
| Setup difficulty | Medium | Hard |
| Min. RAM | 1,024 MB | 1,024 MB |
| Deployment | docker, kubernetes, bare-metal | kubernetes, helm |
| GitHub stars | ★ 241 | ★ 136 |
| First released | 2018 | 2018 |
| Replaces | Auth0, Okta | Okta |
Why pick each one
Choose FusionAuth if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Kubernetes-ready with Helm charts available
- Written in Dockerfile
Choose OpenUnison if…
- Released under the Apache-2.0 license
- Kubernetes-ready with Helm charts available
- Written in Less
Frequently asked questions
Is FusionAuth or OpenUnison better?
FusionAuth is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider OpenUnison if its specific feature set fits your needs better.
Are FusionAuth and OpenUnison free and open-source?
Yes. FusionAuth is licensed under Apache-2.0 and OpenUnison under Apache-2.0. Both can be self-hosted at no software cost.
Can I run FusionAuth and OpenUnison with Docker?
FusionAuth: yes. OpenUnison: check the project docs for container support.