Casdoor vs Supabase Auth
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | Casdoor | Supabase Auth |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 94 · Excellent | 87 · Excellent |
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | MIT |
| Language | Go | Go |
| Setup difficulty | Medium | Medium |
| Min. RAM | 256 MB | 128 MB |
| Deployment | docker, kubernetes, binary | docker, binary |
| GitHub stars | ★ 14,465 | ★ 2,569 |
| First released | 2021 | 2017 |
| Replaces | Auth0, Okta | Auth0 |
What are Casdoor and Supabase Auth?
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
Supabase Auth
GoTrue is a lightweight JSON Web Token based authentication API for managing users and sessions, originally from Netlify and extended by Supabase. It is self-hosted as a small Go service.
- JWT-based auth API
- Email and OAuth login
- Lightweight Go service
- Self-hostable
Casdoor vs Supabase Auth: key differences
Both projects are written in Go. Licensing differs — Apache-2.0 for Casdoor versus MIT for Supabase Auth. Supabase Auth is the lighter option, starting around 128 MB of RAM against 256 MB for Casdoor. Supabase Auth is the more established project (first released 2017), while Casdoor arrived in 2021. Casdoor has the considerably larger community, at 14,465 GitHub stars versus 2,569.
Why pick each one
Choose Casdoor if…
- Polished out-of-the-box UI
- Broad protocol support
Watch out for
- Documentation can be uneven
Choose Supabase Auth if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (2.6k GitHub stars)
- Written in Go
Frequently asked questions
Is Casdoor or Supabase Auth better?
Neither is universally better. Casdoor has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Casdoor and Supabase Auth free and open-source?
Yes. Casdoor is licensed under Apache-2.0 and Supabase Auth under MIT. Both can be self-hosted at no software cost.
Can I run Casdoor and Supabase Auth with Docker?
Casdoor: yes. Supabase Auth: yes.
Which is lighter on resources, Casdoor or Supabase Auth?
Supabase Auth has the smaller minimum footprint at 128 MB of RAM, compared to about 256 MB for Casdoor. Real-world usage depends on library size, user count, and enabled features.