OpenFGA vs Keycloak: Which Should You Choose in 2026?
Choosing between OpenFGA and Keycloak comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated April 14, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
OpenFGA
Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
Best for you if:
- 0
- • You need identity & access features specifically
- • Implements fine-grained authorization inspired by Google's Zanzibar.
- • Supports ReBAC, RBAC, and ABAC with a flexible modeling language.
Keycloak
Open-source identity and access management
Best for you if:
- 0
- • You need password managers features specifically
- • Keycloak is an open-source identity and access management solution
- • It provides SSO, social login, and user federation for applications and services
| At a Glance |  OpenFGA | |
|---|---|---|
Price | Free | Free |
Best For | Identity & Access | Password Managers |
Rating | — | — |
| Feature | OpenFGA | Keycloak |
|---|---|---|
| Pricing Model | Free | Free |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Identity & Access | Password ManagersIdentity & Access |
How OpenFGA and Keycloak Compare
OpenFGA
Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.
Free
Keycloak
Open-source identity and access management
Free
OpenFGA is a identity & access tool. Keycloak is in password managers.
Who Should Use What?
On a budget?
Both are free. Compare plans on their websites.
Go with: OpenFGA
Want the highest-rated option?
Neither has user reviews yet.
Go with: OpenFGA
Value user reviews?
Neither has user reviews yet.
Go with: OpenFGA
3 Questions to Help You Decide
What's your budget?
Both are free. Pricing won't help you decide here.
What's your use case?
OpenFGA is a identity & access tool. Keycloak is in password managers. Pick the category that matches your needs.
How important are ratings?
Neither has user reviews yet.
Key Takeaways
OpenFGA
- 0
- Completely free
- Our pick for this comparison
Keycloak
- Better fit for password managers
The Bottom Line
OpenFGA is our pick.
Frequently Asked Questions
Is OpenFGA or Keycloak better?
OpenFGA is rated high in our evaluation. Both are free.
What are OpenFGA and Keycloak used for?
OpenFGA: Fine-grained authorization inspired by Google's Zanzibar, built for scalability and flexibility.. Keycloak: Open-source identity and access management.
What does OpenFGA cost vs Keycloak?
OpenFGA is completely free. Keycloak is completely free. Visit their websites for detailed pricing.