# Authelia vs Clerk

**Leader by vioscaleAI score:** Clerk

| Attribute | Authelia | Clerk |
|---|---|---|
| **vioscaleAI score** | 59.9 (41% (low)) | 71.4 (71% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 0 | - |
| adoption.github_stars | 29,254 | - |
| content.faq | `[{"answer":"A lightweight, open-source authentication system that enables multi-factor authentication and single sign-on for web applications. It integrates with reverse proxies to control access and comes with a web-based portal for user and access management. It is indexed under Auth & Identity Software.","source":"https://www.authelia.com","question":"What is Authelia?","confidence":0.6},{"answer":"Authelia 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.authelia.com","question":"Is Authelia free to use?","confidence":0.6},{"answer":"Authelia supports the web, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.authelia.com","question":"What platforms does Authelia support?","confidence":0.6},{"answer":"Yes. Authelia can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.authelia.com","question":"Can Authelia be self-hosted?","confidence":0.6},{"answer":"We have confirmed 49 integrations for Authelia, including 1Password, Active Directory, Ansible AWX, Apache Guacamole, Argo CD, Bitwarden, BookStack and Budibase, plus 41 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://www.authelia.com","question":"What does Authelia integrate with?","confidence":0.6},{"answer":"Yes. Authelia 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/authelia/authelia","question":"Is Authelia open source?","confidence":0.95}]` | `[{"answer":"A unified platform providing authentication, user profile management, and billing integration through pre-built components and APIs, enabling developers to implement secure user systems without building them from scratch. It is indexed under Auth & Identity Software.","source":"https://clerk.com/components/pricing-table","question":"What is Clerk?","confidence":0.6},{"answer":"Clerk is a paid product; published pricing starts at $12 per user per month. There is no free tier. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://clerk.com/components/pricing-table","question":"How much does Clerk cost?","confidence":0.6},{"answer":"Clerk supports the web, iOS, Android and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://clerk.com/components/pricing-table","question":"What platforms does Clerk support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Clerk, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://clerk.com/components/pricing-table","question":"Can Clerk be self-hosted?","confidence":0.6},{"answer":"We have confirmed 5 integrations for Clerk, including Google OAuth, GitHub OAuth, Google Workspace, Convex and MCP. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://clerk.com/components/pricing-table","question":"What does Clerk integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Clerk. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Clerk not holding them. Always confirm compliance directly before you rely on it.","source":"https://clerk.com/components/pricing-table","question":"What security certifications does Clerk have?","confidence":0.6}]` |
| deployment.options | `{"cloud":true,"on_prem":true,"self_hosted":true}` | `{"cloud":true}` |
| description.long | Authelia is a self-hosted identity and access management solution that enables centralized authentication and authorization across multiple applications. It supports multi-factor authentication, passwordless login via WebAuthn, and works as an OpenID Connect provider. | Provides embeddable components and APIs for adding authentication, profile management, organizations, and subscription billing to applications. Supports enterprise features like SAML, SCIM provisioning, and multi-tenancy. |
| features.capabilities | `{"mfa":true,"oidc":true,"rbac":true,"hosting":"self","saml_sso":false,"hosted_ui":"hosted","open_source":true,"passwordless":true,"social_login":false,"passkeys_webauthn":true}` | `{"mfa":true,"oidc":true,"rbac":true,"hosting":"cloud","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 | 135 | 7 |
| integrations.list | `[{"name":"1Password"},{"name":"Active Directory"},{"name":"Ansible AWX"},{"name":"Apache Guacamole"},{"name":"Argo CD"},{"name":"Bitwarden"},{"name":"BookStack"},{"name":"Budibase"},{"name":"Caddy"},{"name":"Chronograf"},{"name":"Coder"},{"name":"Docker"},{"name":"Drupal"},{"name":"EspoCRM"},{"name":"Express.js"},{"name":"FreeIPA"},{"name":"FreshRSS"},{"name":"Gitea"},{"name":"GitLab"},{"name":"GLAuth"},{"name":"Grafana"},{"name":"HAProxy"},{"name":"Harbor"},{"name":"HashiCorp Vault"},{"name":"Headscale"},{"name":"HedgeDoc"},{"name":"Homarr"},{"name":"Home Assistant"},{"name":"Immich"},{"name":"Jellyfin"},{"name":"Jenkins"},{"name":"Jira"},{"name":"Kanboard"},{"name":"Kasm Workspaces"},{"name":"Kubernetes"},{"name":"LDAP"},{"name":"Leantime"},{"name":"LibreChat"},{"name":"Linkding"},{"name":"Linkwarden"},{"name":"LLDAP"},{"name":"Mailcow"},{"name":"Mastodon"},{"name":"Matomo"},{"name":"Mattermost"},{"name":"Mealie"},{"name":"MeshCentral"},{"name":"Miniflux"},{"name":"Nextcloud"},{"name":"NGINX"},{"name":"Cloudflare Zero Trust","native":true},{"name":"Rocket.Chat","native":true},{"name":"Vaultwarden","native":true},{"name":"WordPress","native":true},{"name":"Odoo","native":true},{"name":"Traefik","native":true}]` | `[{"name":"Google OAuth"},{"name":"GitHub OAuth"},{"name":"Google Workspace"},{"name":"Convex"},{"name":"MCP"},{"name":"Stripe","native":true,"category":"payments","direction":"bidirectional"},{"name":"Okta Workforce","native":true,"category":"sso","direction":"inbound"},{"name":"Microsoft Entra ID","native":true,"category":"sso","direction":"inbound"},{"name":"Google","native":true,"category":"social_login","direction":"inbound"},{"name":"GitHub","native":true,"category":"social_login","direction":"inbound"},{"name":"Facebook","native":true,"category":"social_login","direction":"inbound"}]` |
| language.primary | Go | - |
| license.spdx | Apache-2.0 | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"web":true}` | `{"cli":true,"ios":true,"web":true}` |
| pricing | `{"type":"open_source","summary":"Open source","freeTier":true,"sourceUrl":"https://www.authelia.com","retrievedAt":"2026-08-14T08:35:22.241Z"}` | `{"type":"subscription","plans":[{"free":true,"name":"Free","summary":"Free, up to 50K MRU","features":["Social authentication (Google, GitHub, Facebook)","Email/password authentication","Magic links","Organizations","Multifactor authentication","Basic billing features"],"description":"Up to 50,000 monthly retained users","contactSales":false,"includedLimits":{"mru":"50000/mo"}},{"free":false,"name":"Pro","summary":"$20/mo billed annually (includes 50K MRU + 1 enterprise connection)","features":["50K monthly retained users included","1 enterprise SSO connection included","Custom session lifetime","Clerk branding removal","Directory sync","Team dashboard","API keys","Events stream","Premium support SLA","99.99% Uptime SLA"],"components":[{"kind":"fixed","amount":20,"period":"month","currency":"USD"}],"description":"For growing applications","contactSales":false,"includedLimits":{"mru":"50000/mo","enterprise_sso_connections":"1"}}],"addOns":[{"name":"Additional Monthly Retained Users","components":[{"per":{"qty":1,"unit":"mru"},"kind":"metered","amount":0.02,"currency":"USD"}]},{"name":"Additional Enterprise SSO Connection","components":[{"kind":"fixed","amount":75,"period":"month","currency":"USD"}]},{"name":"Directory Sync","components":[{"kind":"fixed","amount":75,"period":"month","currency":"USD"}]},{"name":"MFA Connection","components":[{"kind":"fixed","amount":10,"period":"month","currency":"USD"}]},{"name":"SMS Authentication","components":[{"per":{"qty":1,"unit":"sms"},"kind":"metered","amount":0.01,"currency":"USD"}]},{"name":"Clerk Billing with Stripe","components":[{"of":"transaction","kind":"percentage","plus":{"amount":0.3,"currency":"USD"},"rate":2.9},{"of":"billing_volume","kind":"percentage","rate":0.7}]}],"summary":"Free up to 50K MRU. Pro from $20/mo billed annually (includes 50K MRU + 1 enterprise connection). Add-ons available.","currency":"USD","freeTier":true,"sourceUrl":"https://clerk.com/pricing","retrievedAt":"2026-10-05T12:35:42.526Z","startingPrice":{"amount":20,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | mid |
| pricing.starting_price | - | `{"amount":20,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 5 | - |
| release.history | `[{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.28","date":"2026-09-17T12:13:30Z","type":"stable","version":"v4.39.28"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.27","date":"2026-09-15T09:49:03Z","type":"stable","version":"v4.39.27"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.26","date":"2026-09-12T14:00:10Z","type":"stable","version":"v4.39.26"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.25","date":"2026-09-10T12:44:03Z","type":"stable","version":"v4.39.25"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.24","date":"2026-09-09T11:52:31Z","type":"stable","version":"v4.39.24"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.23","date":"2026-09-08T11:22:50Z","type":"stable","version":"v4.39.23"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.22","date":"2026-09-03T08:28:58Z","type":"stable","version":"v4.39.22"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.21","date":"2026-09-03T01:54:43Z","type":"stable","version":"v4.39.21"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.20","date":"2026-05-26T10:26:19Z","type":"stable","version":"v4.39.20"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.19","date":"2026-04-12T07:25:12Z","type":"stable","version":"v4.39.19"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.18","date":"2026-04-10T01:33:54Z","type":"stable","version":"v4.39.18"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.17","date":"2026-04-09T12:01:47Z","type":"stable","version":"v4.39.17"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.16","date":"2026-03-14T08:28:15Z","type":"stable","version":"v4.39.16"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.15","date":"2025-11-29T12:13:04Z","type":"stable","version":"v4.39.15"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.14","date":"2025-11-09T07:18:40Z","type":"stable","version":"v4.39.14"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.13","date":"2025-10-12T05:45:48Z","type":"stable","version":"v4.39.13"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.12","date":"2025-10-08T08:03:01Z","type":"stable","version":"v4.39.12"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.11","date":"2025-10-01T11:42:23Z","type":"stable","version":"v4.39.11"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.10","date":"2025-09-15T09:11:13Z","type":"stable","version":"v4.39.10"},{"url":"https://github.com/authelia/authelia/releases/tag/v4.39.9","date":"2025-09-09T22:48:24Z","type":"stable","version":"v4.39.9"}]` | - |
| reliability.sla_pct | - | 99.99 |
| reliability.status_page | - | yes |
| security.certifications | `[{"name":"OpenID Certified","status":"active"}]` | `[{"name":"SOC 2 Type II","level":"Type II","status":"active"}]` |
| security.disclosure_policy | yes | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | 9.6 | - |
| security.soc2 | - | yes |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fauthelia%2Fauthelia&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (Auth & Identity Software)

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

*Source: vioscaleAI. Generated 2026-10-16T21:00:04.899Z. "-" = undocumented, not absent.*