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%