EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.

The Official C# .NET Driver for MongoDB

Open source obfuscation tool for .NET assemblies

App Metrics is an open-source and cross-platform .NET library used to record and report metrics within an application.

Command Generator and Gacha Banner Editor

Build real-time apps (Blazor included) with less than 1% of extra code responsible for real-time updates. Host 10-1000x faster APIs relying on transparent and nearly 100% consistent caching. We call it DREAM, or Distributed REActive Memoization, and it's here to turn real-time on!

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! 🚀

Mutation testing for .NET core and .NET framework!

DockPanel Suite - The Visual Studio inspired docking library for .NET WinForms

This is the codebase for Entity Framework 6 (previously maintained at https://entityframework.codeplex.com). Entity Framework Core is maintained at https://github.com/dotnet/efcore.

FFME: The Advanced WPF MediaElement (based on FFmpeg)

⚡A list of .NET content creators

Tweetinvi, an intuitive Twitter C# library for the REST and Stream API. It supports .NET, .NETCore, UAP (Xamarin)...

Dark themed control and docking library for .NET WinForms.

Mocking Entity Framework Core operations such ToListAsync, FirstOrDefaultAsync etc

Run .NET and Node.js code in-process on Windows, macOS, and Linux

Awesome .NET Security Resources

Cross-platform coverage gathering and processing tool set for dotnet/.Net Framework and Mono

Remote Access Tool Written In C#

PHP 5.4 compiler for .NET/Mono frameworks. Predecessor to the opensource PeachPie project (www.peachpie.io).