Casbin.NET

The premium Open Source alternative to IdentityServer

🎯 Best for:.NET developers requiring fine-grained access control.

What is Casbin.NET?

An alternative to IdentityServer or custom .NET authorization middleware for C# applications. It implements the PERM metamodel to support diverse access control patterns including RBAC and ABAC.

Tech Stack
C#Backend & Auth

Why Casbin.NET?

  • Multi-model support
  • High performance
  • Active .NET community

Limitations

  • Complex configuration
  • Policy debugging difficulty
  • Documentation overhead
3/5/2026
Last Update
124
Forks
9
Issues
Apache-2.0
License
Financial Leak Detected

Stop the "SaaS Tax"

Your team could be burning cash. Switching to Casbin.NET instantly boosts your runway.

Competitor Cost
-$1,440
/ year (est. based on IdentityServer)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%

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