OpenUnison vs Shibboleth Identity Provider
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | OpenUnison | Shibboleth Identity Provider |
|---|---|---|
| Deploy effort | Read-the-docs project | Under-an-hour setup |
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Less | Java |
| Setup difficulty | Hard | Hard |
| Min. RAM | 1,024 MB | 1,024 MB |
| Deployment | kubernetes, helm | bare-metal, docker, source |
| GitHub stars | ★ 136 | ★ 200 |
| First released | 2018 | 2003 |
| Replaces | Okta | Okta, Ping Identity |
What are OpenUnison and Shibboleth Identity Provider?
OpenUnison
OpenUnison is an open-source identity manager and single sign-on portal that integrates Kubernetes and applications with enterprise identity providers. It is self-hosted in the cluster.
- Kubernetes SSO portal
- Identity provisioning
- LDAP and SAML integration
- Self-service workflows
Shibboleth Identity Provider
The Shibboleth Identity Provider is an open-source SAML identity provider widely used in research and education federations. It enables secure single sign-on and attribute release across organizations.
- SAML 2.0 identity provider
- Attribute resolution and release policies
- Federation metadata support
- Used by academic federations worldwide
OpenUnison vs Shibboleth Identity Provider: key differences
OpenUnison is written in Less, while Shibboleth Identity Provider is built with Java. Shibboleth Identity Provider is the more established project (first released 2003), while OpenUnison arrived in 2018. Shibboleth Identity Provider lists first-class Docker deployment; OpenUnison does not.
Why pick each one
Choose OpenUnison if…
- Released under the Apache-2.0 license
- Kubernetes-ready with Helm charts available
- Written in Less
Choose Shibboleth Identity Provider if…
- Gold standard for SAML federations
- Highly configurable
Watch out for
- Complex setup
- SAML-centric
Frequently asked questions
Is OpenUnison or Shibboleth Identity Provider better?
Neither is universally better. Shibboleth Identity Provider has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are OpenUnison and Shibboleth Identity Provider free and open-source?
Yes. OpenUnison is licensed under Apache-2.0 and Shibboleth Identity Provider under Apache-2.0. Both can be self-hosted at no software cost.
Can I run OpenUnison and Shibboleth Identity Provider with Docker?
OpenUnison: check the project docs for container support. Shibboleth Identity Provider: yes.
Related comparisons
- OpenUnison vs Apache Syncope
- Shibboleth Identity Provider vs Apache Syncope
- OpenUnison vs Apereo CAS
- Shibboleth Identity Provider vs Apereo CAS
- OpenUnison vs Casdoor
- Shibboleth Identity Provider vs Casdoor
- OpenUnison vs Dex
- Shibboleth Identity Provider vs Dex
- OpenUnison vs FusionAuth
- Shibboleth Identity Provider vs FusionAuth