Authentik
Open-source identity provider for SSO and access management
Authentik is the open-source identity provider that makes single sign-on simple. With 15K+ GitHub stars, it provides SAML, OAuth2, LDAP, and RADIUS—all the protocols you need for enterprise SSO. The Okta alternative you can self-host.
Why Authentik?
Okta, Auth0, and Azure AD are expensive and store your identity data in their clouds. For compliance, cost, or control, you need SSO infrastructure on your own servers. But implementing identity protocols is complex and error-prone.
How It Works
Authentik provides a complete identity solution out of the box. Configure applications for SAML or OAuth2, set up LDAP for legacy apps, and add MFA for security. One platform handles all your SSO needs with a beautiful admin interface.
What Is Authentik?
Authentik is an open-source identity provider. It supports SAML, OAuth2/OIDC, LDAP, and RADIUS protocols. Provides SSO, MFA, user management, and acts as an authentication proxy for applications without native SSO support.
Key Benefits
Why teams choose Authentik
All Protocols
SAML, OAuth2, OIDC, LDAP, RADIUS. One platform.
Beautiful UI
Modern admin interface for configuration.
Auth Proxy
Add SSO to apps without native support.
MFA Built-In
TOTP, WebAuthn, and SMS verification.
Flows
Customizable authentication workflows.
Self-Hosted
Your identity data on your infrastructure.
Features
Everything you need to build with Authentik
Application Catalog
Pre-configured integrations for common apps.
User Management
Create, manage, and sync users.
Group Policies
Role-based access with group membership.
Authentication Flows
Visual flow builder for login processes.
Outpost System
Distributed authentication at the edge.
API Access
Full API for automation and integration.
Use Cases
What you can build with Authentik
Technology Stack
Ready to deploy Authentik?
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