# FusionAuth vs Keycloak

**Leader by vioscaleAI score:** Keycloak

| Attribute | FusionAuth | Keycloak |
|---|---|---|
| **vioscaleAI score** | 51.9 (71% (medium)) | 65.4 (46% (low)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 678 |
| adoption.github_stars | - | 37,140 |
| adoption.package_downloads_weekly | - | 998,112 |
| content.faq | `[{"answer":"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. It is indexed under Auth & Identity Software.","source":"https://fusionauth.io/pricing","question":"What is FusionAuth?","confidence":0.6},{"answer":"FusionAuth offers a free tier, so you can start without paying. Paid plans start at $162 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://fusionauth.io/pricing","question":"Is FusionAuth free?","confidence":0.6},{"answer":"We have confirmed browser-based access to FusionAuth. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://fusionauth.io/pricing","question":"What platforms does FusionAuth support?","confidence":0.6},{"answer":"Yes. FusionAuth can be deployed cloud / SaaS, on-premise, air-gapped and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://fusionauth.io/pricing","question":"Can FusionAuth be self-hosted?","confidence":0.6},{"answer":"We have confirmed 7 integrations for FusionAuth, including Google, Facebook, LDAP, Legacy database systems, Kafka, Custom APIs and Webhooks. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://fusionauth.io/pricing","question":"What does FusionAuth integrate with?","confidence":0.6},{"answer":"We have independently confirmed HIPAA and GDPR for FusionAuth. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as FusionAuth not holding them. Always confirm compliance directly before you rely on it.","source":"https://fusionauth.io/pricing","question":"What security certifications does FusionAuth have?","confidence":0.6},{"answer":"FusionAuth is available worldwide. Its primary market is the United States.","source":"https://fusionauth.io/pricing","question":"Where is FusionAuth available?","confidence":0.5}]` | `[{"answer":"Centralized authentication and authorization platform that manages user identity and access control across applications, reducing the need for individual apps to build their own login systems. It is indexed under Auth & Identity Software.","source":"https://www.keycloak.org","question":"What is Keycloak?","confidence":0.6},{"answer":"Keycloak is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.","source":"https://www.keycloak.org","question":"Is Keycloak free to use?","confidence":0.6},{"answer":"Keycloak supports the web, Windows, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.keycloak.org","question":"What platforms does Keycloak support?","confidence":0.6},{"answer":"Yes. Keycloak can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.keycloak.org","question":"Can Keycloak be self-hosted?","confidence":0.6},{"answer":"We have confirmed 10 integrations for Keycloak, including GitHub, Google, Facebook, Twitter, LDAP, Active Directory, Kerberos and Kubernetes, plus 2 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.keycloak.org","question":"What does Keycloak integrate with?","confidence":0.6},{"answer":"Yes. Keycloak is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/keycloak/keycloak","question":"Is Keycloak open source?","confidence":0.95}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | Provides authentication and authorization infrastructure that developers can deploy and integrate with their applications, supporting standard protocols like OAuth 2.0 and OpenID Connect. | An open-source identity management solution that allows users to authenticate once and gain access to multiple applications, eliminating the need for individual login handling at the application level. |
| features.capabilities | `{"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}` | `{"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 | 4 | 8 |
| integrations.list | `[{"name":"Google"},{"name":"Facebook"},{"name":"LDAP"},{"name":"Legacy database systems"},{"name":"Kafka"},{"name":"Custom APIs"},{"name":"Webhooks"}]` | `[{"name":"GitHub"},{"name":"Google"},{"name":"Facebook"},{"name":"Twitter"},{"name":"LDAP"},{"name":"Active Directory"},{"name":"Kerberos"},{"name":"Kubernetes"},{"name":"Apache APISIX"},{"name":"OpenTelemetry"},{"name":"OpenID Connect","native":true},{"name":"SAML 2.0","native":true}]` |
| language.primary | - | Java |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true}` | `{"cli":true,"linux":true,"windows":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Community","summary":"Free","features":["Core authentication standards and features","Community support via forums, Slack, and GitHub","Self-hosted deployment"],"description":"Free, unlimited self-hosted deployment with core authentication features","contactSales":false},{"free":false,"name":"Starter","summary":"$162/month billed annually","features":["Premium authentication features","Breached Password Detection","Machine-to-Machine authentication","Advanced MFA","Application theming","Basic hosting"],"commitment":"annual","components":[{"kind":"fixed","amount":162,"period":"month","currency":"USD"}],"description":"Hosted plan adding premium features including advanced MFA and application theming","contactSales":false},{"free":false,"name":"Essentials","features":["Advanced connectivity, MFA, and security features","Custom OAuth scopes","Email support (24-48 hour response time)","Business hosting"],"description":"Advanced features for business applications with email support and engineering assistance","contactSales":false},{"free":false,"name":"Enterprise","features":["Advanced threat detection","SSO Tenant Manager","24/7 phone and email support","Private Slack channel","Solution architect guidance","Advanced governance","High availability hosting"],"description":"Custom deployment for critical applications with advanced security and round-the-clock support","contactSales":true}],"summary":"From $162/month billed annually. Free tier available for self-hosting.","currency":"USD","freeTier":true,"sourceUrl":"https://fusionauth.io/pricing","retrievedAt":"2026-09-03T22:53:29.374Z","startingPrice":{"amount":162,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"open_source","sourceUrl":"https://www.keycloak.org","retrievedAt":"2026-09-07T13:10:46.299Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | high | free |
| pricing.starting_price | `{"amount":162,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 13 |
| release.history | - | `[{"url":"https://github.com/keycloak/keycloak/releases/tag/nightly","date":"2022-09-27T02:22:00Z","type":"prerelease","version":"nightly"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.8.0","date":"2026-10-01T05:57:20Z","type":"stable","version":"26.8.0"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.7.5","date":"2026-09-30T17:44:19Z","type":"stable","version":"26.7.5"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.7.4","date":"2026-09-16T14:44:06Z","type":"stable","version":"26.7.4"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.7.3","date":"2026-08-31T09:29:37Z","type":"stable","version":"26.7.3"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.7.2","date":"2026-08-19T05:26:20Z","type":"stable","version":"26.7.2"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.7.1","date":"2026-08-05T15:54:37Z","type":"stable","version":"26.7.1"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.7.0","date":"2026-07-09T06:58:13Z","type":"stable","version":"26.7.0"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.6.4","date":"2026-06-26T19:19:51Z","type":"stable","version":"26.6.4"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.6.3","date":"2026-06-04T17:00:13Z","type":"stable","version":"26.6.3"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.6.2","date":"2026-05-19T12:41:03Z","type":"stable","version":"26.6.2"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.6.1","date":"2026-04-15T13:58:02Z","type":"stable","version":"26.6.1"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.6.0","date":"2026-04-08T08:54:19Z","type":"stable","version":"26.6.0"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.7","date":"2026-04-02T14:47:13Z","type":"stable","version":"26.5.7"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.6","date":"2026-03-19T06:45:39Z","type":"stable","version":"26.5.6"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.5","date":"2026-03-05T15:40:30Z","type":"stable","version":"26.5.5"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.4","date":"2026-02-20T09:19:45Z","type":"stable","version":"26.5.4"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.3","date":"2026-02-10T07:30:08Z","type":"stable","version":"26.5.3"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.2","date":"2026-01-23T14:26:58Z","type":"stable","version":"26.5.2"},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.5.1","date":"2026-01-14T18:09:13Z","type":"stable","version":"26.5.1"}]` |
| reliability.sla_pct | 99.99 | - |
| reliability.status_page | yes | - |
| security.certifications | `[{"name":"HIPAA BAA","status":"active"},{"name":"FIPS Compliance","status":"active"}]` | - |
| security.disclosure_policy | yes | yes |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.scorecard | - | 9.3 |
| security.trust_center | - | https://www.keycloak.org/security |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.keycloak%3Akeycloak-server-spi&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Auth & Identity Software)

| Capability | FusionAuth | Keycloak |
|---|:--:|:--:|
| **Deployment** |  |  |
| Hosting | Cloud + self-hosted | 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: vioscaleAI. Generated 2026-10-16T20:58:44.094Z. "-" = undocumented, not absent.*