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RulesEngine

The premium Open Source alternative to Microsoft Business Rules Engine

🎯 Best for:.NET developers needing decoupled business logic
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MITLicense

What is RulesEngine?

A .NET library for externalizing business logic via dynamic expressions. It enables rule evaluation without recompiling code using Lambda expressions.

Tech Stack
C#Automation & Workflow

Why RulesEngine?

  • • High-performance expression evaluation
  • • No recompilation required for rule changes
  • • Supports nested and complex rule sets

Limitations

  • • Limited to .NET ecosystem
  • • Steep learning curve for complex expressions
  • • No built-in visual editor
3/4/2026
Last Update
613
Forks
81
Issues
MIT
License
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Competitor Cost
-$1,440
/ year (est. based on Microsoft Business Rules Engine)
Self-Hosted
$0
/ year
Team Size10 Users
150+
Launch Detailed Calculator
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