# FusionAuth vs ZITADEL: side-by-side comparison (2026)

[FusionAuth](https://cybersectools.com/tools/fusionauth-security) is a commercial [CIAM](https://cybersectools.com/categories/ciam) solution by [FusionAuth](https://cybersectools.com/companies/fusionauth). [ZITADEL](https://cybersectools.com/tools/zitadel) is a commercial [CIAM](https://cybersectools.com/categories/ciam) solution by [ZITADEL](https://cybersectools.com/companies/zitadel). Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | FusionAuth | ZITADEL |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | CIAM | CIAM |
| Verified | No | No |
| Deployment type | Hybrid | Hybrid |
| Company size fit | Startup, SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| Company | FusionAuth | ZITADEL |
| Headquarters | – | – |

### Use cases and capabilities

| | FusionAuth | ZITADEL |
|---|---|---|
| Authentication | Yes | Yes |
| Authorization | Yes | Yes |
| MFA | Yes | Yes |
| Password Management | Yes | – |
| Data Breach | Yes | – |
| SSO | Yes | Yes |
| Agentic AI Security | Yes | – |
| RBAC | – | Yes |
| Multi Tenancy | – | Yes |
| Open Source | – | Yes |
| Passwords | – | Yes |
| Single Sign On | – | Yes |
| REST API | – | Yes |

### Core features

**FusionAuth**

10 features listed. Sign in on the page to see them.

**ZITADEL**

10 features listed. Sign in on the page to see them.

### Integrations

**FusionAuth**

No integrations listed.

**ZITADEL**

3 integrations listed. Sign in on the page to see them.

## FusionAuth vs ZITADEL FAQ

Common questions when comparing FusionAuth vs ZITADEL for CIAM.

### What is the difference between FusionAuth and ZITADEL?

**FusionAuth**: AuthN, AuthZ, and identity management you can deploy anywhere and control end to end. Built by FusionAuth.

**ZITADEL**: Open-source, multi-tenant identity platform for authn, authz, and SSO. Built by ZITADEL.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes FusionAuth and ZITADEL?

**FusionAuth** is made by FusionAuth. **ZITADEL** is made by ZITADEL. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is FusionAuth a good alternative to ZITADEL?

Often, yes. FusionAuth and ZITADEL are both CIAM products, and both cover Authentication, Authorization, SSO. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [FusionAuth vs Descope CIAM Platform](https://cybersectools.com/compare/descope-ciam-platform-vs-fusionauth-security)
- [FusionAuth vs Tesseral](https://cybersectools.com/compare/fusionauth-security-vs-tesseral)
- [FusionAuth vs Clerk](https://cybersectools.com/compare/clerk-vs-fusionauth-security)
- [ZITADEL vs Descope CIAM Platform](https://cybersectools.com/compare/descope-ciam-platform-vs-zitadel)
- [ZITADEL vs Tesseral](https://cybersectools.com/compare/tesseral-vs-zitadel)
- [ZITADEL vs Clerk](https://cybersectools.com/compare/clerk-vs-zitadel)

## Alternatives to each

- [See all FusionAuth alternatives](https://cybersectools.com/alternatives/fusionauth-security)
- [See all ZITADEL alternatives](https://cybersectools.com/alternatives/zitadel)

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Source: https://cybersectools.com/compare/fusionauth-security-vs-zitadel

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/fusionauth-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on FusionAuth and ZITADEL: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md