SHSelfHostIndex

OpenUnison vs ZITADEL

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?
OP OpenUnison Identity management and SSO portal for Kubernetes VS ZI ZITADEL Cloud-native identity infrastructure with multi-tenancy built in
FeatureOpenUnisonZITADEL
CategoryIdentity & SSOIdentity & SSO
LicenseApache-2.0Apache-2.0
LanguageLessGo
Setup difficultyHardMedium
Min. RAM1,024 MB512 MB
Deploymentkubernetes, helmdocker, kubernetes, binary
GitHub stars★ 136★ 14,671
First released20182020
ReplacesOktaAuth0, Okta, Firebase Auth

Why pick each one

Choose OpenUnison if…

  • Released under the Apache-2.0 license
  • Kubernetes-ready with Helm charts available
  • Written in Less
OpenUnison details

Choose ZITADEL if…

  • Strong multi-tenant model
  • Modern Go codebase
ZITADEL details

Frequently asked questions

Is OpenUnison or ZITADEL better?

ZITADEL is the stronger all-round pick: it has both the larger community and the simpler medium setup. Consider OpenUnison if its specific feature set fits your needs better.

Are OpenUnison and ZITADEL free and open-source?

Yes. OpenUnison is licensed under Apache-2.0 and ZITADEL under Apache-2.0. Both can be self-hosted at no software cost.

Can I run OpenUnison and ZITADEL with Docker?

OpenUnison: check the project docs for container support. ZITADEL: yes.

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