Keycloak vs Zitadel
On the evidence we track, Keycloak leads this comparison with a composite score of 65/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.
Capabilities
Feature-by-feature on the axes that matter for auth & identity software. “-” means undocumented, not absent.
What each one is
The product in its own terms, so the numbers below have context.
Keycloak
LeaderAn open-source identity management solution that allows users to authenticate once and gain access to multiple applications, eliminating the need for individual login handling at the application level.
Zitadel
Zitadel is an identity and access management platform that provides API-first authentication, authorization, and user management. It supports multiple deployment models (cloud and self-hosted), comprehensive authentication methods including passwordless and passkeys, and is designed for B2B multi-tenant applications.
Pricing
List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.
Zitadel
Free plan, Pro from $100/month, Enterprise custom pricing
- FreeFree
- All security features
- Data Residency: EU, US, Switzerland, Australia
- Store unlimited Users
- Unlimited Organizations
- 100 Daily Active Users
- +3 more
- Pro$100/month
- Everything in Free
- 25,000 Daily Active Users per month included
- 3 identity providers included
- Custom domain included
- 99.5% uptime guarantee
- +1 more
- EnterpriseContact sales
- Cloud or own infrastructure
- Unlimited Daily Active Users
- Custom Support SLA
- Technical Account Manager
- Volume discounts
- +4 more
Platform & deployment
Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.
Integrations
What each product connects to. Counts come from the vendor's own integration directory where one exists.
- GitHub
- LDAP
- OpenID Connect
- SAML 2.0
Keycloak
Leader- Active Directory
- Kerberos
- Kubernetes
- Apache APISIX
- OpenTelemetry
Zitadel
- Microsoft
- SCIM 2.0
- gRPC
- connectRPC
- REST API
- Webhooks
- Actions
Keycloak or Zitadel: which one depends on you
A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.
Free to run, no account needed to start. How the evaluation works
Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.