Roslyn

dnSpy0xd4d/dnSpy

A debugger and assembly editor for .NET and Unity applications, enabling editing and debugging without source code.

dnSpyExdnSpyEx/dnSpy

An unofficial revival of dnSpy, a debugger and assembly editor for .NET and Unity applications without source code.

MapsterMapsterMapper/Mapster

A high-performance, developer-friendly object-to-object mapper for .NET that automates mapping code generation.

Cakecake-build/cake

A cross-platform build automation system with a C# DSL for compiling, testing, packaging, and more.

RoslynatorJosefPihrt/Roslynator

A comprehensive set of code analysis tools, refactorings, and client libraries for C# development, built on the Roslyn compiler platform.

NSubstitutensubstitute/NSubstitute

A friendly .NET mocking library with a succinct syntax that keeps tests focused on intention rather than configuration.

StyleCopAnalyzersDotNetAnalyzers/StyleCopAnalyzers

An implementation of StyleCop's code style and consistency rules as Roslyn analyzers for .NET projects.

RoslynPadaelij/RoslynPad

A cross-platform C# editor and REPL built on Roslyn for real-time code execution and analysis.

PeachPiepeachpiecompiler/peachpie

A modern PHP compiler and runtime for .NET/.NET Core, enabling PHP code to run within the .NET ecosystem.

ZeroFormatterneuecc/ZeroFormatter

A high-performance C# serializer with infinitely fast deserialization for .NET, .NET Core, and Unity.

AI Game DeveloperIvanMurzak/Unity-MCP

An MCP server and plugin that connects AI agents like Claude and Cursor to Unity for AI-assisted game development and runtime AI integration.

Roslyn Analyzersdotnet/roslyn-analyzers

Roslyn-based analyzers for .NET code quality, security, and maintainability, replacing legacy FxCop.