Ory Hydra vs ZITADEL Login UI
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?
Ory Hydra
Certified OAuth 2.0 and OpenID Connect server
VS
ZITADEL Login UI
Customizable login UI for the ZITADEL identity platform
| Feature | Ory Hydra | ZITADEL Login UI |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Go | TypeScript |
| Setup difficulty | Hard | Medium |
| Min. RAM | 256 MB | 256 MB |
| Deployment | docker, kubernetes, binary | docker, source |
| GitHub stars | ★ 17,462 | ★ 113 |
| First released | 2015 | 2023 |
| Replaces | Okta, Auth0 | Auth0 Universal Login |
Why pick each one
Choose ZITADEL Login UI if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Written in TypeScript
- Tiny footprint — runs in 256 MB RAM
Frequently asked questions
Is Ory Hydra or ZITADEL Login UI better?
Neither is universally better. Ory Hydra has the larger community, while ZITADEL Login UI is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Ory Hydra and ZITADEL Login UI free and open-source?
Yes. Ory Hydra is licensed under Apache-2.0 and ZITADEL Login UI under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Ory Hydra and ZITADEL Login UI with Docker?
Ory Hydra: yes. ZITADEL Login UI: yes.