# Keycloak vs Zitadel

**Leader by vioscaleAI score:** Keycloak

| Attribute | Keycloak | Zitadel |
|---|---|---|
| **vioscaleAI score** | 65.4 (46% (low)) | 56.1 (43% (low)) |
| activity.commits_last_30d | 100 | 32 |
| adoption.dependent_repos | 678 | 0 |
| adoption.github_stars | 37,140 | 15,201 |
| adoption.package_downloads_weekly | 998,112 | - |
| content.faq | `[{"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}]` | `[{"answer":"An open-source identity platform providing multi-tenant architecture with support for passwordless authentication, social logins, multi-factor authentication, single sign-on, and enterprise integrations via standardized protocols like OIDC, SAML, and SCIM. It is indexed under Auth & Identity Software.","source":"https://zitadel.com/pricing","question":"What is Zitadel?","confidence":0.6},{"answer":"Zitadel is open source, so it can be self-hosted and used at no licence cost. It is released under the AGPL-3.0 licence. A commercial or hosted edition starts at $100 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://zitadel.com/pricing","question":"Is Zitadel free to use?","confidence":0.6},{"answer":"We have confirmed browser-based access to Zitadel. 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://zitadel.com/pricing","question":"What platforms does Zitadel support?","confidence":0.6},{"answer":"Yes. Zitadel can be deployed cloud / SaaS, hybrid and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://zitadel.com/pricing","question":"Can Zitadel be self-hosted?","confidence":0.6},{"answer":"We have confirmed 12 integrations for Zitadel, including Google, Microsoft, GitHub, LDAP, SAML 2.0, SCIM 2.0, OpenID Connect and gRPC, plus 4 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://zitadel.com/pricing","question":"What does Zitadel integrate with?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Zitadel. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Zitadel not holding them. Always confirm compliance directly before you rely on it.","source":"https://zitadel.com/pricing/detail","question":"What security certifications does Zitadel have?","confidence":0.6},{"answer":"Yes. Zitadel is published under the AGPL-3.0 licence, a copyleft licence, so check its terms before embedding it in a closed-source product. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/zitadel/zitadel","question":"Is Zitadel open source?","confidence":0.95},{"answer":"Zitadel is available in the United States, Australia and Switzerland. Its primary markets are the United States, Australia and Switzerland.","source":"https://zitadel.com/pricing","question":"Where is Zitadel available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | 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. | Zitadel is an identity and access management platform that provides API-first authentication, authorization, and user management. It supports multiple deployment models (cloud and self-hosted), comprehensive authentication methods including passwordless and passkeys, and is designed for B2B multi-tenant applications. |
| 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 | 8 | 3 |
| integrations.list | `[{"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}]` | `[{"name":"Google"},{"name":"Microsoft"},{"name":"GitHub"},{"name":"LDAP"},{"name":"SAML 2.0"},{"name":"SCIM 2.0"},{"name":"OpenID Connect"},{"name":"gRPC"},{"name":"connectRPC"},{"name":"REST API"},{"name":"Webhooks"},{"name":"Actions"}]` |
| language.primary | Java | Go |
| license.spdx | Apache-2.0 | AGPL-3.0 |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"regional","availableCountries":["US","AU","CH","EU"],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"linux":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://www.keycloak.org","retrievedAt":"2026-09-07T13:10:46.299Z"}` | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"$0/month","features":["All security features","Data Residency: EU, US, Switzerland, Australia","Store unlimited Users","Unlimited Organizations","100 Daily Active Users","Service Users / Agents","3 identity providers","Custom workflows"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"daily_active_users":"100"}},{"free":false,"name":"Pro","summary":"$100/month","features":["Everything in Free","25,000 Daily Active Users per month included","3 identity providers included","Custom domain included","99.5% uptime guarantee","1h response SLO"],"components":[{"kind":"fixed","amount":100,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"daily_active_users":"25000"}},{"free":false,"name":"Enterprise","summary":"Custom pricing","features":["Cloud or own infrastructure","Unlimited Daily Active Users","Custom Support SLA","Technical Account Manager","Volume discounts","Commercial license","Custom Security Questionnaires","99.99% uptime guarantee","Custom contract/MSA"],"contactSales":true,"includedLimits":{"daily_active_users":"Unlimited"}}],"summary":"Free plan, Pro from $100/month, Enterprise custom pricing","currency":"USD","freeTier":true,"sourceUrl":"https://zitadel.com/pricing","retrievedAt":"2026-10-05T10:09:39.266Z","startingPrice":{"amount":100,"period":"month","currency":"USD"},"billingPeriods":["month"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | high |
| pricing.starting_price | - | `{"amount":100,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 13 | 3 |
| 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"}]` | `[{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.19.4","date":"2026-10-01T13:03:38Z","type":"stable","version":"v4.19.4"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.19.3","date":"2026-09-29T16:16:47Z","type":"stable","version":"v4.19.3"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.19.2","date":"2026-09-28T06:27:26Z","type":"stable","version":"v4.19.2"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.19.1","date":"2026-09-23T16:33:07Z","type":"stable","version":"v4.19.1"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.19.0","date":"2026-09-23T05:36:55Z","type":"stable","version":"v4.19.0"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.18.0","date":"2026-09-21T11:56:42Z","type":"stable","version":"v4.18.0"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.17.3","date":"2026-09-04T06:44:05Z","type":"stable","version":"v4.17.3"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.17.2","date":"2026-08-31T09:04:57Z","type":"stable","version":"v4.17.2"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.17.1","date":"2026-08-14T06:41:55Z","type":"stable","version":"v4.17.1"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v3.4.15","date":"2026-08-14T07:59:53Z","type":"stable","version":"v3.4.15"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.17.0","date":"2026-08-12T08:37:50Z","type":"stable","version":"v4.17.0"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.16.3","date":"2026-08-07T17:10:12Z","type":"stable","version":"v4.16.3"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.16.2","date":"2026-07-29T05:55:47Z","type":"stable","version":"v4.16.2"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v3.4.14","date":"2026-07-29T07:30:54Z","type":"stable","version":"v3.4.14"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.16.1","date":"2026-07-17T08:44:37Z","type":"stable","version":"v4.16.1"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v3.4.13","date":"2026-07-17T09:07:58Z","type":"stable","version":"v3.4.13"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.16.0","date":"2026-07-10T05:56:50Z","type":"stable","version":"v4.16.0"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.15.3","date":"2026-06-22T11:46:24Z","type":"stable","version":"v4.15.3"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v4.15.2","date":"2026-06-17T04:21:59Z","type":"stable","version":"v4.15.2"},{"url":"https://github.com/zitadel/zitadel/releases/tag/v3.4.12","date":"2026-06-17T07:09:32Z","type":"stable","version":"v3.4.12"}]` |
| reliability.sla_pct | - | 99.5 |
| reliability.status_page | - | yes |
| security.certifications | - | `[{"name":"OpenID Connect certified","status":"active"}]` |
| security.disclosure_policy | yes | yes |
| security.gdpr | - | 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}` | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=zitadel%2Fzitadel&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Auth & Identity Software)

| Capability | Keycloak | Zitadel |
|---|:--:|:--:|
| **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 2026-10-16T21:42:25.144Z. "-" = undocumented, not absent.*