FusionAuth vs WorkOS
FusionAuth
fusionauth.ioWorkOS
workos.comSide by side
| Figure | FusionAuth | WorkOS |
|---|---|---|
| Price from | $162/mo | $99/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 8 | 10 |
| Spec score · Identity and Access Management Software | 9.2 (#1) | 8.5 (#13) |
| Spec score · Single Sign-On Software | 9.3 (#1) | 8.5 (#10) |
| Spec score · Authentication Software | 9.2 (#2) | 8.5 (#8) |
| Spec score · Passkey Authentication Software | 9.2 (#4) | 8.5 (#15) |
| Authentication | It supports username/password login, identity providers, passkeys, and one-time passwords. | Its User Management offering supports SAML and OIDC identity providers, social authentication, and passwordless email codes. |
| Authorization | FusionAuth provides role-based access control and fine-grained authorization capabilities. | WorkOS documentation lists role-based and fine-grained authorization with custom roles and permissions. |
| Integrations | Identity-provider integrations include Apple, Facebook, Google, Twitter and arbitrary OIDC or SAML v2 providers, with connectors, plugins and monitoring integrations also available. | The integration catalog includes SAML and SCIM providers, HR systems, OAuth services, React Native Expo, Supabase, Stripe and Segment. |
| Notable release | Release 1.69.4 dated October 14, 2026 fixed vulnerabilities involving account takeover, privilege escalation, authentication bypass and sensitive-information exposure. | WorkOS announced Android and iOS SDK availability in August 2026. |
| Rating on G2 | 4.5 out of 5 from 140 reviews. | 4.5 out of 5 from 26 reviews. |
| Rating on TrustRadius | 8 out of 10 from 2 reviews. | 5 out of 10 from 1 review. |
| Security certifications | FusionAuth reports SOC 2 Type 2 and ISO 27001 compliance and provides reports through its trust center for eligible customers. | WorkOS states that it is SOC 2 Type 2 certified, GDPR and CCPA compliant, and undergoes annual third-party penetration tests and external code audits. |
| Support | Community support is provided through forums, Slack, and GitHub; Essentials includes email support with a 24 to 48 hour business-hours response time, and Enterprise includes 24/7 email and phone support. | All accounts include email support, in-dashboard web support, API status notifications, documentation, and example apps. |
| What it does | FusionAuth is a customer identity and access management server providing authentication, authorization and user management. | WorkOS provides APIs and infrastructure that let SaaS applications add enterprise identity and administration capabilities. |
Plans
FusionAuth
- CommunityFree
- CommunityFree
- Starter$162 a month
- Starter$162 a month
- Enterprise$2,970 a month
- Enterprise$2,970 a month
- Essentials$2,970 a month
- Essentials$2,970 a month
WorkOS
- AuthKitFree
- RadarFree
- Standard SupportFree
- Custom Domain$99 a month
- Audit Logs$125 a month
- Directory Sync$125 a month
- Single Sign-On$125 a month
- Scale Support$1,000 a month
- Annual CreditsPriced on request
- Enterprise SupportPriced on request
In their own words
FusionAuth
FusionAuth is a Customer Identity and Access Management server for authentication, authorization, and user management. It supports username and password login, passkeys, one-time passwords, and external identity providers, including Apple, Facebook, Google, and Twitter. It implements OAuth 2.0, OpenID Connect, and SAML v2. Authorization includes role-based access across users, roles, groups, applications, and entities, plus fine-grained authorization integration. Teams can customize pages and messages and use lambda functions and webhooks. It can run locally, on-premises, in private or air-gapped cloud environments, or as a managed FusionAuth Cloud instance. The free Community Edition is self-hosted and unlimited, with no trial clock. Starter costs $162 a month billed annually and includes one connector and 100 machine-to-machine entities; Essentials and Enterprise cost $2,970 a month billed annually. FusionAuth supports Android, iOS, Linux, macOS, Windows, web, and API deployments.
WorkOS
WorkOS provides APIs and hosted components for SaaS companies adding enterprise capabilities to applications. Its User Management supports SAML and OIDC identity providers, social authentication, and passwordless email codes. Directory Sync handles SCIM provisioning and HRIS integrations for user lifecycle management. Customer IT administrators can configure identity providers and directories in a hosted Admin Portal with custom branding and a custom domain. Developers get REST APIs, JSON responses, webhooks, and SDKs for Node.js, Ruby, Python, .NET, Go, PHP, and Java. AuthKit includes email and password, magic-code sign-in, MFA, passkeys, organization policies, JIT provisioning, RBAC, and CLI authentication. WorkOS lists API, iOS, and web platforms, plus integrations such as Okta, Microsoft Entra ID, Google Workspace, Salesforce, Slack, and Stripe. Pricing is freemium: free plans exist, while paid products start at $99/mo for Custom Domain and $125/mo for SSO or Directory Sync.