# Clerk vs FusionAuth

**Leader by Vioscale score:** Clerk

| Attribute | Clerk | FusionAuth |
|---|---|---|
| **Vioscale score** | 72.2 (71% (medium)) | 52.5 (72% (medium)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"hybrid":true,"on_prem":true,"air_gapped":true,"self_hosted":true}` |
| description.long | A cloud-based authentication and user management platform offering prebuilt UI components, APIs, and dashboards to implement user sign-in, profile management, organizations, and billing features. | FusionAuth is an identity and access management solution providing comprehensive authentication capabilities including social login, passwordless authentication, multi-factor authentication, and single sign-on. It supports self-hosted, cloud, and hybrid deployment models with transparent, predictable pricing and full API-first integration. |
| features.capabilities | `{"mfa":true,"oidc":true,"rbac":true,"hosting":"cloud","saml_sso":true,"hosted_ui":"both","open_source":true,"social_login":true,"b2b_multi_tenant":true}` | `{"mfa":true,"oidc":true,"rbac":true,"hosting":"both","saml_sso":true,"hosted_ui":"both","open_source":true,"passwordless":true,"social_login":true,"b2b_multi_tenant":true,"passkeys_webauthn":true,"scim_provisioning":true}` |
| integrations.count | 5 | 7 |
| integrations.list | `[{"name":"Google OAuth"},{"name":"GitHub OAuth"},{"name":"Google Workspace"},{"name":"Convex"},{"name":"MCP"}]` | `[{"name":"Google"},{"name":"Facebook"},{"name":"LDAP"},{"name":"Legacy database systems"},{"name":"Kafka"},{"name":"Custom APIs"},{"name":"Webhooks"}]` |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"US","primaryMarkets":["US","EU"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"ios":true,"web":true,"android":true}` | `{"cli":true,"web":true,"linux":true}` |
| pricing | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free tier, 10,000 MAUs","features":["Sign-in and sign-up","Customizable sign-in pages","Custom domain","Profile management","Social login"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Up to 10,000 monthly active users","contactSales":false,"includedLimits":{"monthly_active_users":"10,000"}},{"free":false,"name":"Pro","summary":"$25/month plus $0.02 per additional MAU","features":["All Free features","Remove Clerk branding","Custom session duration","Password complexity requirements","User ban/unban","Allowlist/blocklist","Multiple domains","SMS authentication","SOC2 report on request"],"components":[{"kind":"fixed","amount":25,"period":"month","currency":"USD"},{"per":{"qty":1,"unit":"MAU"},"kind":"metered","amount":0.02,"currency":"USD"}],"description":"Complete feature set for most applications","contactSales":false,"includedLimits":{"monthly_active_users":"10,000"}},{"free":false,"name":"Enterprise","contactSales":true}],"addOns":[{"name":"Enhanced Authentication"},{"name":"Enhanced Organizations"},{"name":"Enhanced Administration"}],"summary":"From $25/month. Free tier with 10,000 MAUs.","currency":"USD","freeTier":true,"sourceUrl":"https://clerk.com/blog/new-pricing-plans","retrievedAt":"2026-08-14T12:16:19.293Z","startingPrice":{"amount":0.02,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"subscription","plans":[{"free":true,"name":"Community","summary":"Free, self-hosted","features":["Core authentication standards and features","Community support via forums, Slack, and GitHub","Self-hosted deployment"],"description":"Free, unlimited self-hosted edition with core authentication features","contactSales":false},{"free":false,"name":"Starter","summary":"$162/mo when billed annually","features":["Premium authentication features","Advanced MFA methods","Application theming","Breached password detection","Machine-to-machine authentication","Basic hosting included"],"commitment":"annual","components":[{"kind":"fixed","amount":162,"period":"month","currency":"USD"}],"description":"Premium authentication features with advanced MFA, application customization, and basic hosting","contactSales":false},{"free":false,"name":"Essentials","summary":"Starting at $2,970/mo billed annually","features":["Advanced connectivity, MFA, and security features","Custom OAuth scopes","Email support with 24-48 hour response during business hours","Business hosting included"],"commitment":"annual","components":[{"kind":"fixed","amount":2970,"period":"month","currency":"USD"}],"description":"Advanced security and connectivity features for business applications with email support and business hosting","contactSales":false},{"free":false,"name":"Enterprise","summary":"Starting at $2,970/mo billed annually","features":["All Essentials features","Advanced threat detection","SSO tenant manager","24/7 phone and email support","Private Slack channel with contract","Solution architect guidance","High-availability hosting"],"commitment":"annual","components":[{"kind":"fixed","amount":2970,"period":"month","currency":"USD"}],"description":"Critical application support with advanced threat detection, 24/7 engineering support, and dedicated infrastructure","contactSales":true}],"summary":"Free self-hosted Community edition. Paid cloud plans from $162/mo for Starter.","currency":"USD","freeTier":true,"sourceUrl":"https://fusionauth.io/pricing","retrievedAt":"2026-08-14T08:36:23.179Z","startingPrice":{"amount":162,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | high |
| pricing.transparent | yes | yes |
| reliability.sla_pct | 99.99 | 99.99 |
| reliability.status_page | yes | yes |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | yes |
| security.hipaa | yes | yes |
| security.soc2 | yes | - |

## Capabilities (Auth & Identity Software)

| Capability | Clerk | FusionAuth |
|---|:--:|:--:|
| **Deployment** |  |  |
| Hosting | Cloud only | Cloud + self-hosted |
| **Methods** |  |  |
| Social login | ✓ | ✓ |
| Passwordless | - | ✓ |
| Passkeys / WebAuthn | - | ✓ |
| Multi-factor auth | ✓ | ✓ |
| **Enterprise** |  |  |
| SAML SSO | ✓ | ✓ |
| SCIM provisioning | - | ✓ |
| B2B / multi-tenancy | ✓ | ✓ |
| **Standards** |  |  |
| OpenID Connect provider | ✓ | ✓ |
| **Delivery** |  |  |
| Hosted UI | Both | Both |
| **Access** |  |  |
| RBAC | ✓ | ✓ |
| **Licensing** |  |  |
| Self-hostable OSS core | ✓ | ✓ |

*Source: Vioscale. Generated 2026-09-01T17:13:14.887Z. "-" = undocumented, not absent.*