FusionAuth vs Zitadel
Side-by-side comparison of identity tools. Sponsored placement is disclosed where applicable.
Quick answer
FusionAuth vs Zitadel: which should you choose?
Short answer
FusionAuth vs Zitadel 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
- FusionAuth: Organizations that want deployment flexibility (self-hosted option), comprehensive authentication features without MAU-based pricing at scale, and a developer-friendly API. Particularly relevant for companies in regulated industries with data residency requirements, gaming companies with large user bases, or teams that prefer open source-adjacent infrastructure. · Zitadel: B2B SaaS teams that want multi-tenant identity with both self-hosted open source and managed cloud options.
- 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
- FusionAuthZitadelIAM Stack FinderBuyer resources
| Attribute | ||
|---|---|---|
| Best for | Organizations that want deployment flexibility (self-hosted option), comprehensive authentication features without MAU-based pricing at scale, and a developer-friendly API. Particularly relevant for companies in regulated industries with data residency requirements, gaming companies with large user bases, or teams that prefer open source-adjacent infrastructure. | B2B SaaS teams that want multi-tenant identity with both self-hosted open source and managed cloud options. |
| Short description | FusionAuth is a comprehensive authentication and user management platform offering flexible deployment (self-hosted, private cloud, or FusionAuth Cloud), developer-friendly APIs, and broad feature coverage including SSO, MFA, SAML, OIDC, and multi-tenancy. | Open source identity and access platform with built-in multi-tenancy, SSO, MFA and a managed Zitadel Cloud SaaS. |
| Company size | Startup, Mid-market, Enterprise | startup, smb, mid_market, enterprise |
| Deployment | Self-hosted, Private Cloud, SaaS / Cloud-hosted (FusionAuth Cloud) | saas, self_hosted |
| Source | Source-available (Community Edition); verify current license at fusionauth.io | open source |
| Pricing model | Free for self-hosted Community Edition; cloud and enterprise tiers by deployment/support | tiered |
| Integrations | Google, Apple, GitHub, Facebook, LDAP, Active Directory, Salesforce, Twilio | OIDC, OAuth 2.0, SAML, SCIM, LDAP |
| Categories | SSO, Customer Identity / CIAM, Developer Authentication, MFA / Passwordless | SSO, Workforce IAM, Developer Authentication |
| Claimed profile |
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