SuperTokens vs ZITADEL
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
| Feature | SuperTokens | ZITADEL |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 95 · Excellent | 95 · Excellent |
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Java | Go |
| Setup difficulty | Medium | Medium |
| Min. RAM | 512 MB | 512 MB |
| Deployment | docker, binary | docker, kubernetes, binary |
| GitHub stars | ★ 15,320 | ★ 15,083 |
| First released | 2020 | 2020 |
| Replaces | Auth0, Firebase Auth | Auth0, Okta, Firebase Auth |
What are SuperTokens and ZITADEL?
SuperTokens
SuperTokens is an open-source authentication solution that handles login, sessions, social login and more. It can be self-hosted and offers SDKs and prebuilt UI components for rapid integration.
- Email/password and passwordless login
- Social and enterprise SSO
- Secure session management
- Prebuilt frontend components
ZITADEL
ZITADEL is an open-source identity and access management platform built for multi-tenant applications. It offers OpenID Connect, OAuth2, SAML, passwordless login and a powerful management API.
- Multi-tenancy as a first-class concept
- Passwordless and FIDO2 authentication
- Event-sourced audit trail
- Comprehensive gRPC and REST APIs
SuperTokens vs ZITADEL: key differences
SuperTokens is written in Java, while ZITADEL is built with Go.
Why pick each one
Choose SuperTokens if…
- Easy framework integration
- Good free self-hosted tier
Watch out for
- Some advanced features are paid
Choose ZITADEL if…
- Strong multi-tenant model
- Modern Go codebase
Watch out for
- Smaller community than Keycloak
Frequently asked questions
Is SuperTokens or ZITADEL better?
Neither is universally better. SuperTokens has the larger community; both share a medium setup difficulty, so the decision comes down to features and licensing.
Are SuperTokens and ZITADEL free and open-source?
Yes. SuperTokens is licensed under Apache-2.0 and ZITADEL under Apache-2.0. Both can be self-hosted at no software cost.
Can I run SuperTokens and ZITADEL with Docker?
SuperTokens: yes. ZITADEL: yes.