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Top 23 C# dotnet-standard Projects
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Entity Framework
EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
Project mention: SQL-First-in-Migrations: Governing Every Database Artifact Through EF Core Migrations | dev.to | 2026-05-12EF Core Issues. "Adding Stored Procedures/View/Functions using Function within the migration flow." GitHub/dotnet/efcore #34469.
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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.
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First, check out the following thread in its entirety, which is what AI might form a response from. Now let's explore a better way using Spectre.Console NuGet package.
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Electron.NET
:electron: Build cross platform desktop apps with ASP.NET Core (Razor Pages, MVC, Blazor).
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Since June I've been working on version 2 of one of my .NET libraries, CliInvoke - a library focussed on making running external processes from .NET safer and easier. It started out as an alternative to CliWrap but has diverged in strategies and direction, with CliInvoke focussing more on separation of concerns and Dependency Injection support.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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About a year and a half ago, I was architecting a modular monolith and obsessing over performance. I'd been using MediatR for years, but I wanted something faster. I discovered Mediator by Martin Othamar - a SourceGenerator-based implementation that promised better performance through compile-time code generation.
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App.Metrics
App Metrics is an open-source and cross-platform .NET library used to record and report metrics within an application.
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PolySharp
PolySharp provides generated, source-only polyfills for C# language features, to easily use all runtime-agnostic features downlevel. Add a reference, set your C# version to latest and have fun! 🚀
Project mention: Comptime – C# meta-programming with compile-time code generation and evaluation | news.ycombinator.com | 2025-12-20You add PolySharp to your source generator project to get back some of the modern C# features. https://github.com/Sergio0694/PolySharp
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Vanara
A set of .NET libraries for Windows implementing PInvoke calls to many native Windows APIs with supporting wrappers.
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Downloader
Fast, cross-platform and reliable multipart downloader with asynchronous progress events for .NET applications.
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GeneticSharp
GeneticSharp is a fast, extensible, multi-platform and multithreading C# Genetic Algorithm library that simplifies the development of applications using Genetic Algorithms (GAs).
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tweetinvi
Tweetinvi, an intuitive Twitter C# library for the REST and Stream API. It supports .NET, .NETCore, UAP (Xamarin)...
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NetFabric.Hyperlinq
High performance LINQ implementation with minimal heap allocations. Supports enumerables, async enumerables, arrays and Span<T>.
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ShopifySharp
ShopifySharp is a .NET library that helps developers easily authenticate with and manage Shopify stores using Shopify's GraphQL API.
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SaaSHub
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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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A note from our sponsor - SaaSHub
www.saashub.com | 6 Jun 2026
Index
What are some of the best open-source dotnet-standard projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Entity Framework | 14,679 |
| 2 | spectre.console | 11,482 |
| 3 | Electron.NET | 7,601 |
| 4 | CliWrap | 4,971 |
| 5 | Magick.NET | 3,938 |
| 6 | YoutubeExplode | 3,670 |
| 7 | command-line-api | 3,667 |
| 8 | Mediator | 3,600 |
| 9 | FluentResults | 2,604 |
| 10 | App.Metrics | 2,248 |
| 11 | PolySharp | 2,191 |
| 12 | spark | 2,094 |
| 13 | Vanara | 2,067 |
| 14 | OpenAI-API-dotnet | 1,894 |
| 15 | Downloader | 1,671 |
| 16 | CliFx | 1,603 |
| 17 | GeneticSharp | 1,364 |
| 18 | monotorrent | 1,215 |
| 19 | sendgrid-csharp | 1,117 |
| 20 | tweetinvi | 999 |
| 21 | NetFabric.Hyperlinq | 901 |
| 22 | ShopifySharp | 883 |
| 23 | parquet-dotnet | 883 |
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