Caddy Security vs ZITADEL
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?
Caddy Security
Authentication and authorization plugin for Caddy
VS
ZITADEL
Cloud-native identity infrastructure with multi-tenancy built in
| Feature | Caddy Security | ZITADEL |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Go | Go |
| Setup difficulty | Medium | Medium |
| Min. RAM | 128 MB | 512 MB |
| Deployment | binary, source | docker, kubernetes, binary |
| GitHub stars | ★ 2,213 | ★ 14,671 |
| First released | 2021 | 2020 |
| Replaces | Cloudflare Access | Auth0, Okta, Firebase Auth |
Why pick each one
Choose Caddy Security if…
- Released under the Apache-2.0 license
- Active community (2.2k GitHub stars)
- Written in Go
- Tiny footprint — runs in 128 MB RAM
Frequently asked questions
Is Caddy Security or ZITADEL better?
Neither is universally better. ZITADEL has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are Caddy Security and ZITADEL free and open-source?
Yes. Caddy Security is licensed under Apache-2.0 and ZITADEL under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Caddy Security and ZITADEL with Docker?
Caddy Security: check the project docs for container support. ZITADEL: yes.