Zitadel
Open-source identity infrastructure with SSO and multi-tenancy
FreeAuthSecurityOpen Source2 impressions
Zitadel is a free alternative to Auth0.
ZITADEL is an open-source, multi-tenant identity platform offering SSO, passwordless login and role-based access via APIs.
- for
- Developers building consumer, B2B or employee applications needing authentication and authorization.
- pricing
- freemium · free trial
- license
- AGPL-3.0
Key features
- Hosted login UI — Customizable hosted login page with social and passwordless options.
- API-first authentication — REST and gRPC APIs to embed login flows directly in applications.
- Role-Based Access Control — Define permissions per role for fine-grained authorization.
- Multi-tenant core — Create unlimited organizations and projects to isolate customers.
- Extensible actions — Run workflow scripts on predefined events without deploying code.
- Multi-factor & Passkeys — Enforce MFA or passwordless passkey authentication for stronger security.
Use cases
- Add SSO and social login to a SaaS product with a single API call.
- Implement passwordless authentication for a mobile app using passkeys.
- Manage separate tenant identities for multiple client companies in a B2B platform.
Zitadel pricing
- FREEUS$0/MonthAll security features · Unlimited users & organizations · 100 Daily Active Users · 3 identity providers
- PROUS$100/Month/month25,000 Daily Active Users · Custom domain · 99.5% uptime guarantee · 1h response SLO
Zitadel vs alternatives
 Zitadel |  Auth0 |  Keycloak |  SuperTokens |  WorkOS | |
|---|---|---|---|---|---|
| Best for | API-first multi-tenant identity infrastructure | Hosted SaaS authentication | Self-hosted IAM | Auth libraries for web/mobile | Enterprise SSO APIs |
| Pricing | Freemium | Subscription | Free | Free | Subscription |
| DevHunt upvotes | 0 | 0 | 0 | 0 | 0 |
| Launched | — | — | — | — | — |
- Zitadel vs Auth0: Auth0 is a hosted SaaS auth service, while ZITADEL offers open-source self-hosted and cloud options with multi-tenant focus.
- Zitadel vs Keycloak: Keycloak is open-source IAM but focuses on on-prem deployments; ZITADEL adds API-first design and built-in multi-tenant SaaS plans.
- Zitadel vs SuperTokens: SuperTokens provides open-source auth libraries, whereas ZITADEL delivers a full identity platform with hosted UI and enterprise features.
- Zitadel vs WorkOS: WorkOS offers enterprise SSO and directory sync APIs, while ZITADEL includes full identity lifecycle, RBAC and multi-tenant management.
Zitadel FAQ
Can I try ZITADEL for free?+
Yes, there is a FREE plan that includes all security features and up to 100 daily active users.
What authentication methods are supported?+
ZITADEL supports hosted login, passwordless, MFA, passkeys and social logins via Google, Microsoft and GitHub.
Is ZITADEL multi-tenant?+
Yes, the platform is built with multi-tenant architecture, allowing unlimited organizations and projects.
How can I extend functionality?+
You can use ZITADEL Actions to run custom workflow scripts on predefined events without deploying your own code.
What deployment options are available?+
ZITADEL can be used as a cloud service (Free or Pro plans) or self-hosted with a custom enterprise contract.
What APIs are provided?+
Both modern gRPC and REST APIs are available, with full documentation for integration.
Summarized by DevHunt from zitadel.com · Oct 1, 2026. Details may change; check the official site.
About this listing
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