Zitadel Has a Free Open-Source Identity Management Platform

Zitadel is a free, open-source identity management platform that handles authentication, authorization, and user management for your applications. What Is Zitadel? Zitadel is a modern alternative to Auth0 and Keycloak. It provides everything you need for user authentication — login, registration, SSO, MFA, RBAC — all in one platform. Key features: Built-in login UI (no frontend coding needed) Multi-tenancy support OIDC, OAuth2, SAML support Passwordless authentication (FIDO2/WebAuthn) Multi-factor authentication Role-based access control (RBAC) Audit logging Self-hostable or cloud-hosted SDKs for every major framework Why Not Just Use Auth0? Auth0 is great — until you see the pricing: Auth0 free: 7,500 users, limited features Auth0 B2B: starts at $150/mo Auth0 Enterprise: $$$ Zitadel free tier: 50,000 monthly active users . Self-hosted: unlimited. Quick Start Cloud (free tier) Sign up at zitadel.com , create an instance, get your credentials. Self-host with Docker docker run --name zit