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Zitadel vs Auth0

Side-by-side comparison of identity tools. Sponsored placement is disclosed where applicable.

Quick answer

Zitadel vs Auth0: which should you choose?

Short answer

Zitadel vs Auth0 have overlapping use cases in identity and access management. The right pick depends on your company size, deployment model, integrations, and pricing tolerance — compare those attributes side-by-side below.

Best for
Zitadel: B2B SaaS teams that want multi-tenant identity with both self-hosted open source and managed cloud options. · Auth0: Development teams building web and mobile applications that need feature-rich, standards-compliant authentication with minimal identity infrastructure overhead. Particularly strong for applications requiring both consumer authentication (social login, passwordless) and enterprise authentication (SAML SSO, SCIM).
When to choose
Pick the option whose company-size fit, deployment model, and integrations most closely match your stack.
When not to choose
Skip a head-to-head if you haven't shortlisted a category yet — start with the IAM Stack Finder instead.
Related tools & categories
ZitadelAuth0IAM Stack FinderBuyer resources
Attribute
Best for B2B SaaS teams that want multi-tenant identity with both self-hosted open source and managed cloud options. Development teams building web and mobile applications that need feature-rich, standards-compliant authentication with minimal identity infrastructure overhead. Particularly strong for applications requiring both consumer authentication (social login, passwordless) and enterprise authentication (SAML SSO, SCIM).
Short description Open source identity and access platform with built-in multi-tenancy, SSO, MFA and a managed Zitadel Cloud SaaS. Auth0 is a developer-centric customer identity and access management (CIAM) platform offering authentication, authorization, and user management for web and mobile applications, now operating as Okta Customer Identity Cloud.
Company size startup, smb, mid_market, enterprise Startup, Mid-market, Enterprise
Deployment saas, self_hosted SaaS / Cloud-hosted
Source open source Proprietary
Pricing model tiered MAU-based (monthly active users); M2M tokens priced separately; enterprise plans available
Integrations OIDC, OAuth 2.0, SAML, SCIM, LDAP Google, Facebook, GitHub, Salesforce, Twilio, SendGrid, Stripe, Segment
Categories SSO, Workforce IAM, Developer Authentication SSO, Customer Identity / CIAM, Developer Authentication, MFA / Passwordless
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