.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.

🐝 A collection of awesome .NET core libraries, tools, frameworks and software

Dapper - a simple object mapper for .Net

Bitwarden infrastructure/backend (API, database, Docker, etc).

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

Open-source web application framework for ASP.NET Core! Offers an opinionated architecture to build enterprise software solutions with best practices on top of the .NET. Provides the fundamental in…

One framework for creating powerful cross-platform games.

Mono open source ECMA CLI, C# and .NET implementation.

A convention-based object-object mapper in .NET.

An easy way to perform background job processing in .NET and .NET Core applications. No Windows Service or separate process required

Simple REST and HTTP API Client for .NET

A popular .NET validation library for building strongly-typed validation rules.

LiteDB - A .NET NoSQL Document Store in a single data file

The most popular and friendly mocking framework for .NET

Docker images and test runners that replicate the live AWS Lambda environment

Canonical actor model implementation for .NET with local + distributed actors in C# and F#.

xUnit.net is a free, open source, community-focused unit testing tool for .NET.

Visual Studio extension for assembly syntax highlighting and code completion in assembly files and the disassembly window

Celeste Bugs & Issue Tracker + some Source Code

A helper library for async/await.

Should testing for .NET—the way assertions should be!

ASP.NET Core rate limiting middleware

Cross platform code coverage for .NET

ReportGenerator converts coverage reports generated by coverlet, OpenCover, dotCover, Visual Studio, NCover, Cobertura, JaCoCo, Clover, gcov or lcov into human readable reports in various formats.

The modding API for Stardew Valley.

Piranha CMS is the friendly editor-focused CMS for .NET that can be used both as an integrated CMS or as a headless API.

A .NET document database working on any RDBMS

Analyzes C# source code to enforce a set of style and consistency rules.

C# bindings for lemire/simdjson (and full C# port)

A fluent ORM for .NET