Cerbos vs Gatekeeper Library by Psecio: Side-by-Side Comparison (2026)

Cerbos: External authorization engine for enterprise apps with RBAC/ABAC policy support. built by Cerbos. Core capabilities include Policy-based authorization engine for runtime access control decisions, Role-based access control (RBAC) support, Attribute-based access control (ABAC) support..

Gatekeeper Library by Psecio: A simple drop-in library for managing users, permissions, and groups in your application..

Both serve the Identity Governance and Administration market but differ in approach, feature depth, and target audience.

Cerbos is developed by Cerbos. Gatekeeper Library by Psecio is open-source with 362 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.

Cerbos and Gatekeeper Library by Psecio serve similar Identity Governance and Administration use cases: both are Identity Governance and Administration tools, both cover RBAC, Permissions. Key differences: Cerbos is Commercial while Gatekeeper Library by Psecio is Free, Gatekeeper Library by Psecio is open-source. Review the feature comparison above to determine which fits your requirements.