Casdoor vs Janssen Project
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Casdoor | Janssen Project |
|---|---|---|
| Deploy effort | Under-an-hour setup | Read-the-docs project |
| Health score | 94 · Excellent | 80 · Excellent |
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Go | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 256 MB | 4,096 MB |
| Deployment | docker, kubernetes, binary | kubernetes, helm |
| GitHub stars | ★ 14,465 | ★ 649 |
| First released | 2021 | 2020 |
| Replaces | Auth0, Okta | Okta, Auth0 |
What are Casdoor and Janssen Project?
Casdoor
Casdoor is an open-source identity and access management platform with a strong focus on a friendly user interface. It supports OAuth2, OIDC, SAML, CAS, LDAP and many social login providers.
- Supports OAuth, SAML, CAS and LDAP
- Dozens of built-in social login providers
- Multi-tenant organization support
- Web-based admin and login UI
Janssen Project
The Janssen Project is a Linux Foundation effort delivering a scalable, cloud-native identity and access management platform. It implements OpenID Connect, OAuth 2.0, and FIDO standards for authentication and authorization.
- OpenID Connect provider
- OAuth 2.0 server
- FIDO2 and passkeys
- Cloud-native deployment
Casdoor vs Janssen Project: key differences
Casdoor is written in Go, while Janssen Project is built with Java. Casdoor is the lighter option, starting around 256 MB of RAM against 4,096 MB for Janssen Project. Casdoor has the considerably larger community, at 14,465 GitHub stars versus 649. Casdoor lists first-class Docker deployment; Janssen Project does not.
Why pick each one
Choose Casdoor if…
- Polished out-of-the-box UI
- Broad protocol support
Watch out for
- Documentation can be uneven
Choose Janssen Project if…
- Standards complete
- Built for scale
Watch out for
- Complex to operate
- Heavy resource needs
Frequently asked questions
Is Casdoor or Janssen Project better?
Casdoor is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Janssen Project if its specific feature set fits your needs better.
Are Casdoor and Janssen Project free and open-source?
Yes. Casdoor is licensed under Apache-2.0 and Janssen Project under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Casdoor and Janssen Project with Docker?
Casdoor: yes. Janssen Project: check the project docs for container support.
Which is lighter on resources, Casdoor or Janssen Project?
Casdoor has the smaller minimum footprint at 256 MB of RAM, compared to about 4,096 MB for Janssen Project. Real-world usage depends on library size, user count, and enabled features.