OpenFGA
Claim this toolFine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
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Tracked since2026
0 reviews trackedThe Bottom Line
Entry price
Free, no paid tier
Biggest pro
Highly scalable and performant for authorization checks.
Biggest con
Requires Docker for quick local setup, which might be an initial barrier for some.
TL;DR - OpenFGA
- Implements fine-grained authorization inspired by Google's Zanzibar.
- Supports ReBAC, RBAC, and ABAC with a flexible modeling language.
- Offers high performance and scalability with SDKs for easy integration.
Pricing: Free forever
Best for: Individuals & startups
What is OpenFGA?
OpenFGA is an open-source authorization system that allows developers to define and enforce fine-grained access control policies for their applications. It draws inspiration from Google's Zanzibar paper, providing a robust Relationship-Based Access Control (ReBAC) model, while also supporting Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC) use cases. The system is designed for high performance, capable of answering authorization checks in milliseconds, making it suitable for applications ranging from small startups to large-scale enterprise platforms.
OpenFGA provides a powerful yet accessible modeling language for defining authorization policies, enabling both engineers and other stakeholders to understand and contribute. It offers SDKs for popular programming languages to facilitate easy integration into existing applications and encourages community contributions for new SDKs. As a Cloud Native Computing Foundation (CNCF) incubating project, OpenFGA emphasizes transparency and community-driven development, with an RFC process and governance model that invites broad participation to shape its future.
Available on: Web
Pros & Cons
Pros
- Highly scalable and performant for authorization checks.
- Flexible modeling language supports various access control paradigms.
- Open-source and backed by the Cloud Native Computing Foundation (CNCF).
- Easy integration with existing applications via SDKs.
Cons
- Requires Docker for quick local setup, which might be an initial barrier for some.
- New users may need to learn the specific modeling language and concepts.
Preview
Key Features
Relationship-Based Access Control (ReBAC)Role-Based Access Control (RBAC)Attribute-Based Access Control (ABAC)Extensible authorization modeling languageSDKs for popular programming languagesMillisecond authorization check response timesCommunity-driven development and RFC process
Pricing Plans
Pricing checked Jul 8, 2026
OpenFGA
Free
- Model any authorization system
- Works with your code (SDKs)
- Blazing fast
- Built in the open
- CNCF Incubation Project
Reviews
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OpenFGA FAQ
How does OpenFGA enable fine-grained access control for applications?
OpenFGA allows developers to define and enforce detailed access control policies using a robust Relationship-Based Access Control (ReBAC) model. It also supports Role-Based Access Control (RBAC) and Attribute-Based Access Control (ABAC) use cases. This flexibility ensures precise control over who can access what within an application.
Which teams benefit most from using OpenFGA?
OpenFGA is best suited for development teams and security engineers who need to implement scalable and flexible authorization systems. Its accessible modeling language allows both engineers and other stakeholders to understand and contribute to policy definitions. The system's high performance makes it ideal for applications requiring rapid authorization checks.
How is OpenFGA priced?
OpenFGA is free to use, as it is an open-source authorization system. There is no paid plan required to utilize its features for defining and enforcing access control policies.
Can OpenFGA integrate with existing application infrastructures?
Yes, OpenFGA offers SDKs for popular programming languages to facilitate easy integration into existing applications. This allows developers to quickly incorporate its fine-grained authorization capabilities without extensive refactoring.
What kind of trade-offs should users consider when adopting OpenFGA?
New users may need to invest time in learning OpenFGA's specific modeling language and core concepts. Additionally, a quick local setup requires Docker, which could be an initial hurdle for some users.
How does OpenFGA compare to Keycloak for authorization management?
OpenFGA focuses on providing a highly scalable and flexible fine-grained authorization system inspired by Google's Zanzibar, emphasizing relationship-based access control. Keycloak, while also handling authorization, is primarily known as an open-source identity and access management solution that includes broader authentication features.
Does OpenFGA support community-driven development and contributions?
Yes, as a Cloud Native Computing Foundation (CNCF) incubating project, OpenFGA emphasizes transparency and community-driven development. It features an RFC process and governance model designed to invite broad participation and contributions, including for new SDKs.
Source: openfga.dev