FusionAuth vs WSO2 Identity Server
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?
FusionAuth
Complete authentication and authorization platform
VS
WSO2 Identity Server
Open-source identity and access management server
| Feature | FusionAuth | WSO2 Identity Server |
|---|---|---|
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Dockerfile | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 1,024 MB | 4,096 MB |
| Deployment | docker, kubernetes, bare-metal | docker, kubernetes, bare-metal |
| GitHub stars | ★ 241 | ★ 870 |
| First released | 2018 | 2007 |
| Replaces | Auth0, Okta | Okta, ForgeRock |
Why pick each one
Choose FusionAuth if…
- Released under the Apache-2.0 license
- First-class Docker support for quick deployment
- Kubernetes-ready with Helm charts available
- Written in Dockerfile
Choose WSO2 Identity Server if…
- Enterprise feature set
- Strong standards coverage
Frequently asked questions
Is FusionAuth or WSO2 Identity Server better?
Neither is universally better. WSO2 Identity Server has the larger community, while FusionAuth is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are FusionAuth and WSO2 Identity Server free and open-source?
Yes. FusionAuth is licensed under Apache-2.0 and WSO2 Identity Server under Apache-2.0. Both can be self-hosted at no software cost.
Can I run FusionAuth and WSO2 Identity Server with Docker?
FusionAuth: yes. WSO2 Identity Server: yes.