Apereo CAS 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.
Not the right match-up?
Apereo CAS
Enterprise single sign-on server for web applications
VS
Supabase Auth
Small JWT-based user authentication API service
| Feature | Apereo CAS | Supabase Auth |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | MIT |
| Language | Java | Go |
| Setup difficulty | Hard | Medium |
| Min. RAM | 1,024 MB | 128 MB |
| Deployment | docker, kubernetes, bare-metal | docker, binary |
| GitHub stars | ★ 11,354 | ★ 2,513 |
| First released | 2004 | 2017 |
| Replaces | Okta, Ping Identity | Auth0 |
Why pick each one
Choose Apereo CAS if…
- Mature SSO with broad protocol support
- Widely adopted in academia
Choose Supabase Auth if…
- Released under the MIT license
- First-class Docker support for quick deployment
- Active community (2.5k GitHub stars)
- Written in Go
Frequently asked questions
Is Apereo CAS or Supabase Auth better?
Neither is universally better. Apereo CAS has the larger community, while Supabase Auth is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Apereo CAS and Supabase Auth free and open-source?
Yes. Apereo CAS is licensed under Apache-2.0 and Supabase Auth under MIT. Both can be self-hosted at no software cost.
Can I run Apereo CAS and Supabase Auth with Docker?
Apereo CAS: yes. Supabase Auth: yes.