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Top 23 C# dot-net Projects
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SkiaSharp
SkiaSharp is a cross-platform 2D graphics API for .NET platforms based on Google's Skia Graphics Library. It provides a comprehensive 2D API that can be used across mobile, server and desktop models to render images.
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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Elasticsearch .NET
This strongly-typed, client library enables working with Elasticsearch. It is the official client maintained and supported by Elastic.
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Architecture
.NET, Angular, Clean Architecture, Clean Code, SOLID Principles, KISS Principle, DRY Principle, Fail Fast Principle, Common Closure Principle, Common Reuse Principle, Acyclic Dependencies Principle, Mediator Pattern, Result Pattern, Folder-by-Feature Structure, Separation of Concerns.
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To substitute the object creating a mock, we'll use the NSubstitute package. This article will not cover how to use the NSubstitute, but to explain the basics we say to the code "When someone calls method X, returns the value Y", so the result is a fake value.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Fine Code Coverage
Visualize unit test code coverage easily for free in Visual Studio Community Edition (and other editions too)
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NReco LambdaParser
Runtime parser for string expressions (formulas, method calls). Builds dynamic LINQ expression tree and compiles it to lambda delegate.
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DnsTube
🌐 Access your computer from anywhere. DnsTube is a Windows dynamic DNS client for Cloudflare-managed domains.
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NReco.Data
Fast DB-independent DAL for .NET Core: abstract queries, SQL commands builder, schema-less data access, POCO mapping (micro-ORM). (by nreco)
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Unchase.FluentPerformanceMeter
:hammer: Make the exact performance measurements of the public methods for public classes using this NuGet Package with fluent interface. Requires .Net Standard 2.0+. It is an Open Source project under Apache-2.0 License.
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Simplify.Web
Simplify.Web is an open-source, lightweight, fast and highly customizable server-side .NET web-framework based on ASP.NET Core for building HTTP based web-applications, RESTful APIs etc.
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Simplify.DI
Simplify is an open-source set of lightweight .NET libraries that provide infrastructure for your applications. DI and mocking friendly. (by SimplifyNet)
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Project mention: Detecting harm content in text and images using Azure AI Content Safety | dev.to | 2024-12-26
For this demo we will use this GitHub repository where you can set the settings such as API Key, connection string, etc.
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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).
C# dot-net discussion
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BuddyInjector
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Unit Testing in .NET: Tools and Techniques
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What am I missing about interfaces?
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The Moq-gate: You Either Die a Hero...
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Since v4.20, Moq is harvesting email addresses
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AI .NET
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A note from our sponsor - SaaSHub
www.saashub.com | 23 Jun 2025
Index
What are some of the best open-source dot-net projects in C#? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | SkiaSharp | 4,939 |
| 2 | Elasticsearch .NET | 3,629 |
| 3 | LiteNetLib | 3,259 |
| 4 | Architecture | 3,228 |
| 5 | TensorFlowSharp | 3,151 |
| 6 | NSubstitute | 2,824 |
| 7 | Fleck | 2,385 |
| 8 | Rubberduck | 2,019 |
| 9 | fo-dicom | 1,124 |
| 10 | sqids-dotnet | 1,035 |
| 11 | ParquetViewer | 909 |
| 12 | Fine Code Coverage | 577 |
| 13 | DotNetCore | 471 |
| 14 | CSLY | 394 |
| 15 | NetBarcode | 362 |
| 16 | NReco LambdaParser | 313 |
| 17 | DnsTube | 307 |
| 18 | NReco.Data | 189 |
| 19 | GDShrapt | 43 |
| 20 | Unchase.FluentPerformanceMeter | 43 |
| 21 | Simplify.Web | 22 |
| 22 | Simplify.DI | 18 |
| 23 | Demo-AzureAIContentSafety | 1 |
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