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Authentik

Authentik

Open Source Identity Provider for SSO

Last Updated:10/26/2025
Pricing:
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What is Authentik

Authentik is a tool that manages how users sign in to your applications and services. Think of it as a central security checkpoint that verifies who someone is before letting them access your systems.

It supports multiple authentication methods, from simple passwords to advanced options like security keys and fingerprints. Authentik can connect to social login providers like Google or GitHub, or it can manage its own user database. The platform uses industry-standard protocols, which means it works with thousands of applications without custom coding.

Authentik is open source, meaning anyone can review its code for security issues. You can install it using Docker or Kubernetes, making it suitable for any size organization. There are free and paid versions available, depending on your needs.

Features of Authentik

  • Multiple protocol support (OAuth, SAML, LDAP, RADIUS)

  • Self-hosted and open source

  • Multi-factor authentication options

  • Social login integration

  • Customizable authentication flows

  • Web-based remote access (SSH, RDP, VNC)

  • Fine-grained access policies

  • Visual admin dashboard

  • API and automation support

  • Docker and Kubernetes deployment

  • Enhanced audit logging (Professional)

  • Enterprise integrations available

Authentik Pricing

Open Source
Free
  • Unlimited users
  • All authentication protocols (OIDC, SAML, LDAP, RADIUS, SCIM, Kerberos, Proxy)
  • Web-based RDP/SSH access
  • B2B and B2C use case support
  • Community Discord support
  • Self-hosted deployment
  • Open source code
Most Popular
Professional
$5
  • Everything in Open Source
  • Enhanced audit logging for compliance
  • Google Workspace integration
  • Microsoft Entra ID integration
  • Embed external OAuth/SAML sources
  • Chrome Enterprise Device Trust connector
  • Shared Signals Framework (ABM) support
  • Password history compliance checks
Enterprise
Custom
  • Everything in Professional
  • Dedicated, customized support
  • Volume discounts at thousands of users
  • FIPS compliance for FedRAMP requirements
  • Custom contracts available
  • Minimum $20,000 annual subscription

Authentik Repository

View on Github
Stars25,605
Forks2,023
Repository Age6 years
Last Commit3 hours ago

FAQ's About Authentik

Yes, the open-source version of Authentik is completely free with no user limits. It includes all essential authentication features and protocols. Professional ($5/user/month) and Enterprise ($20k+/year) plans add advanced features like enhanced audit logging and enterprise integrations.
Unlike Auth0 and Okta which are cloud services, Authentik is self-hosted, meaning you run it on your own servers. This gives you complete control over your user data and authentication processes. Authentik is also open source, allowing full transparency and customization.
Authentik supports all major authentication protocols including OAuth2, OpenID Connect (OIDC), SAML, LDAP, RADIUS, SCIM, and Kerberos. It also offers proxy authentication for applications that don't natively support modern protocols.
Yes, Authentik can integrate with existing user directories like Active Directory, LDAP servers, and various social login providers (Google, GitHub, Discord, etc.). It can also federate with other identity providers using standard protocols.
Basic server administration skills are helpful. You should be comfortable with Docker or Kubernetes deployment. The documentation is comprehensive, and there's an active community for support. For enterprise deployments, professional support is available.
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