C# Core

Open-source C# projects categorized as Core
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C# entity-framework .NET open-source Net
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Top 10 C# Core Projects

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Core

  1. System.Linq.Dynamic.Core

    The .NET Standard / .NET Core version from the System Linq Dynamic functionality.

  2. ReSharper

    ReSharper is now available in VS Code and Cursor. ReSharper brings a professional toolset for C# developers backed by over 20 years of experience, enterprise-grade security, SOC 2 compliance, and the trust of companies worldwide.

    ReSharper logo

  3. SapphireDb

    SapphireDb Server, a self-hosted, easy to use realtime database for Asp.Net Core and EF Core

  4. NSpec

    A battle hardened testing framework for C# that's heavily inspired by Mocha and RSpec.

  5. HTMLToQPDF

    HTMLToQPDF is an extension for QuestPDF that allows to generate PDF from HTML

  6. Net8CoreApiBoilerplate

    Net Core Api startup project that can be used as base to upgrade legacy projects or start new one

  7. Genie4

    .NET 6 Update of Genie

  8. q-rest

    Extensible framework for Queries over HTTP

  9. Code Effects

    Code Effects: AI-Ready .NET Business Rules Engine. Embed visual business rules in your .NET app with AI-assisted authoring, native VS debugging, blazing-fast compiled evaluation, and no SaaS dependency. FREE edition available.

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  10. AnnotationServiceBuilder

    AnnotationServiceBuilder - Simplifying .NET Service Registration with Annotations

  11. Newt

    Autogenerate a .Net (C#/EF Core) data project (class library with entities and data contexts) and an admin website from a Postgres database. Also creates backup SQL and Graphviz .dot diagram source. (by kcartlidge)

  12. AspNetCore.Docs

    Documentation for ASP.NET Core (by peterturguniev)

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# Core related posts

  • ASP.NET8 using DataTables.net – Part1 – Foundation

    3 projects | dev.to | 7 Nov 2024

  • Net 7 API Boilerplate: Upgrading a 21-Year-Old Legacy Project

    1 project | /r/dotnet | 17 Jan 2023

  • Is there an asset that adds visual scripting to an in-game level editor (for VR)?

    2 projects | /r/Unity3D | 24 Aug 2021

  • Build dynamic Linq filters (aka. where() predicates)

    3 projects | /r/dotnet | 4 Jun 2021

  • Made a Voxel Engine with procedural generation stuffs

    3 projects | /r/Unity3D | 14 Feb 2021
  • A note from our sponsor - Kargo
    akuity.io | 15 Sep 2026
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Index

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

# Project Stars
1 System.Linq.Dynamic.Core 1,712
2 SapphireDb 406
3 NSpec 260
4 HTMLToQPDF 124
5 Net8CoreApiBoilerplate 47
6 Genie4 24
7 q-rest 20
8 AnnotationServiceBuilder 5
9 Newt 1
10 AspNetCore.Docs 0

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