Apache Syncope vs ZITADEL
A side-by-side comparison of two self-hosted identity & sso options — licensing, setup difficulty, resource needs, and what each one replaces.
ZITADEL
Cloud-native identity infrastructure with multi-tenancy built
| Feature | Apache Syncope | ZITADEL |
|---|---|---|
| Deploy effort | Under-an-hour setup | Under-an-hour setup |
| Health score | 77 · Good | 95 · Excellent |
| Category | Identity & SSO | Identity & SSO |
| License | Apache-2.0 | Apache-2.0 |
| Language | Java | Go |
| Setup difficulty | Hard | Medium |
| Min. RAM | 2,048 MB | 512 MB |
| Deployment | docker, kubernetes, bare-metal | docker, kubernetes, binary |
| GitHub stars | ★ 341 | ★ 15,083 |
| First released | 2012 | 2020 |
| Replaces | SailPoint, Okta | Auth0, Okta, Firebase Auth |
What are Apache Syncope and ZITADEL?
Apache Syncope
Apache Syncope is an open-source system for managing digital identities in enterprise environments. It handles identity lifecycle, provisioning, governance and access management with workflow support.
- Identity lifecycle management
- Provisioning to many connected systems
- Workflow-driven approvals
- Reporting and auditing
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
Apache Syncope vs ZITADEL: key differences
Apache Syncope is written in Java, while ZITADEL is built with Go. ZITADEL is the lighter option, starting around 512 MB of RAM against 2,048 MB for Apache Syncope. Apache Syncope is the more established project (first released 2012), while ZITADEL arrived in 2020. ZITADEL has the considerably larger community, at 15,083 GitHub stars versus 341.
Why pick each one
Choose Apache Syncope if…
- Strong identity governance features
- Standards based
Watch out for
- Complex enterprise-oriented setup
Choose ZITADEL if…
- Strong multi-tenant model
- Modern Go codebase
Watch out for
- Smaller community than Keycloak
Frequently asked questions
Is Apache Syncope or ZITADEL better?
ZITADEL is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider Apache Syncope if its specific feature set fits your needs better.
Are Apache Syncope and ZITADEL free and open-source?
Yes. Apache Syncope is licensed under Apache-2.0 and ZITADEL under Apache-2.0. Both can be self-hosted at no software cost.
Can I run Apache Syncope and ZITADEL with Docker?
Apache Syncope: yes. ZITADEL: yes.
Which is lighter on resources, Apache Syncope or ZITADEL?
ZITADEL has the smaller minimum footprint at 512 MB of RAM, compared to about 2,048 MB for Apache Syncope. Real-world usage depends on library size, user count, and enabled features.