Ory Hydra vs FreeRADIUS
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
FreeRADIUS
High-performance open-source RADIUS server
| Feature | Ory Hydra | FreeRADIUS |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | GPL-2.0 |
| Language | Go | C |
| Setup difficulty | Hard | Hard |
| Min. RAM | 256 MB | 256 MB |
| Deployment | docker, kubernetes, binary | bare-metal, source, docker |
| GitHub stars | ★ 17,462 | ★ 2,569 |
| First released | 2015 | 1999 |
| Replaces | Okta, Auth0 | Cisco ISE |
Why pick each one
Frequently asked questions
Is Ory Hydra or FreeRADIUS better?
Neither is universally better. Ory Hydra has the larger community; both share a hard setup difficulty, so the decision comes down to features and licensing.
Are Ory Hydra and FreeRADIUS free and open-source?
Yes. Ory Hydra is licensed under Apache-2.0 and FreeRADIUS under GPL-2.0. Both can be self-hosted at no software cost.
Can I run Ory Hydra and FreeRADIUS with Docker?
Ory Hydra: yes. FreeRADIUS: yes.