keycloak vs authentik

Keycloak provides single sign‑on (SSO) and identity brokering for web, mobile, and API‑based applications. It supports standard protocols like OpenID Connect, OAuth 2.0, and SAML, allowing seamless integration with existing user stores. The platform includes an admin console, user self‑service, and fine‑grained authorization policies, all available under an Apache 2.0 license. It can be deployed on‑premises or used as a managed service, making it suitable for both startups and large enterprises.

Authentik is an open-source authentication server that provides a comprehensive solution for identity and access management. It offers a wide range of features, including multi-factor authentication, single sign-on, and user management.

• Fully open source with no licensing fees
• Supports all major authentication standards
• Extensible with custom providers and scripts
• Strong community and Red Hat enterprise support

• Highly customizable and scalable
• Supports multiple authentication factors and protocols
• Provides a comprehensive user management system
• Open-source and free to use

• Initial setup can be complex for beginners
• Admin UI may feel dated compared to newer SaaS solutions
• Self‑hosted scaling requires operational expertise

• Steep learning curve for non-technical users
• Requires significant setup and configuration
• May require additional infrastructure and resources for large-scale deployments