Dex 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.
| Feature | Dex | WSO2 Identity Server |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 90 · Excellent | 80 · Excellent |
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Go | Java |
| Setup difficulty | Medium | Hard |
| Min. RAM | 128 MB | 4,096 MB |
| Deployment | docker, kubernetes, binary | docker, kubernetes, bare-metal |
| GitHub stars | ★ 11,120 | ★ 880 |
| First released | 2016 | 2007 |
| Replaces | Okta, Auth0 | Okta, ForgeRock |
What are Dex and WSO2 Identity Server?
Dex
Dex is an identity service that uses OpenID Connect to drive authentication for other applications. It acts as a portal to other identity providers through connectors such as LDAP, SAML and GitHub.
- OIDC federation broker
- Connectors for LDAP, SAML and GitHub
- Popular in Kubernetes environments
- Lightweight and stateless
WSO2 Identity Server
WSO2 Identity Server is an open-source IAM product that provides single sign-on, identity federation, and strong authentication. It supports SAML, OpenID Connect, and adaptive authentication policies.
- Single sign-on
- Identity federation
- Adaptive authentication
- Standards support
Dex vs WSO2 Identity Server: key differences
Dex is written in Go, while WSO2 Identity Server is built with Java. Dex is the lighter option, starting around 128 MB of RAM against 4,096 MB for WSO2 Identity Server. WSO2 Identity Server is the more established project (first released 2007), while Dex arrived in 2016. Dex has the considerably larger community, at 11,120 GitHub stars versus 880.
Why pick each one
Choose Dex if…
- Great Kubernetes integration
- Simple and reliable
Watch out for
- No user management of its own
Choose WSO2 Identity Server if…
- Enterprise feature set
- Strong standards coverage
Watch out for
- Resource heavy
- Complex tuning
Frequently asked questions
Is Dex or WSO2 Identity Server better?
Dex is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider WSO2 Identity Server if its specific feature set fits your needs better.
Are Dex and WSO2 Identity Server free and open-source?
Yes. Dex 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 Dex and WSO2 Identity Server with Docker?
Dex: yes. WSO2 Identity Server: yes.
Which is lighter on resources, Dex or WSO2 Identity Server?
Dex has the smaller minimum footprint at 128 MB of RAM, compared to about 4,096 MB for WSO2 Identity Server. Real-world usage depends on library size, user count, and enabled features.