authentik
Open-source identity provider with modern UI and protocol support
ToolIdentity & Access ManagementSelf-hosted, Open source
Pricing: Free (Open Source) / Enterprise from contact
Reviewed by the Cyber Vendor Guide editorial team against the public sources cited below · Last reviewed September 2026 · How we review listings
What is authentik?
authentik is an open-source identity provider focused on flexibility and versatility. It supports SAML, OAuth2, OpenID Connect, LDAP, SCIM, and RADIUS protocols. It provides a modern UI for user self-service, admin management, and can act as a full identity provider or authentication proxy.
Best for: Teams wanting a modern, developer-friendly open-source identity provider with easy deployment
Pros
- Fully open source with active development
- Modern, polished admin UI
- Supports all major identity protocols
- Easy Docker/Kubernetes deployment
- Flexible flow-based authentication engine
Things to check
- Younger project than Keycloak
- Smaller community and ecosystem
- Enterprise features require paid license
- Limited enterprise support options
Reported in public reviews and vendor documentation. See sources below.
Key Features
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Sources & references
Where the information on this listing comes from. Always verify pricing and capabilities against the vendor before a purchasing decision.
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Key facts
- Pricing
- Free (Open Source) / Enterprise from contact
- Model
- Open Source + Enterprise
- Founded
- 2020
- Cloud
- No
- Self-hosted
- Yes
- Open source
- Yes
authentik Alternatives
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