C# Rules Engine

Open-source C# projects categorized as Rules Engine

Top 4 C# Rules Engine Projects

Rules Engine
  1. RulesEngine

    A Json based Rules Engine with extensive Dynamic expression support

    Project mention: Building A JSON Rules Engine from Scratch with MSRulesEngine β€” Part 1 | dev.to | 2025-02-09

    Hi Coding Buddy!! 😊 Welcome to the learn series where we will build an rules engine for a childhood wonderland called β€œArcade”. In this series we will concentrate on learning together a JSON based rules engine developed by Microsoft. This is the link to their Open-Source Git hub repo. In order to move forward seamlessly. Please make sure you have checked the pre-requisites section below. To have everything downloaded for us to work together.

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  3. NRules

    Rules engine for .NET, based on the Rete matching algorithm, with internal DSL in C#.

  4. peasy

    A business logic micro-framework for .NET and .NET Core

  5. RulesEngineEditor

    Editor for Microsoft RulesEngine - Blazor UI library intended for integration in Web or Desktop

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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C# Rules Engine related posts

  • Building A JSON Rules Engine from Scratch with MSRulesEngine β€” Part 1

    2 projects | dev.to | 9 Feb 2025
  • How do you handle complicated decision trees?

    1 project | /r/Blazor | 30 Apr 2023
  • Need help in Designing rule engine in .net

    1 project | /r/dotnetcore | 22 Apr 2023
  • How to store business logic (data validation rules in my case) that can be updated?

    3 projects | /r/csharp | 29 Mar 2023
  • Microsoft's Rule Engine - Rule question

    1 project | /r/csharp | 24 Jan 2023
  • Ideas for frameworks to build a Rules Engine

    1 project | /r/dotnetcore | 14 Nov 2022
  • Microsoft RulesEngine. Feedback from those that have used it in enterprise environments

    3 projects | /r/dotnet | 2 Jul 2022
  • A note from our sponsor - CodeRabbit
    coderabbit.ai | 25 Mar 2025
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Index

What are some of the best open-source Rules Engine projects in C#? This list will help you:

# Project Stars
1 RulesEngine 3,843
2 NRules 1,554
3 peasy 512
4 RulesEngineEditor 414

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