roslyn

The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.

Open-source platform for building cross-platform native Mobile, Web, Desktop, and Embedded apps from a single C#/XAML codebase. Work from any IDE/CLI with Hot Reload, Visual Designer, MCPs, and Skills built for modern .NET workflows. 200M+ NuGet downloads.

A .NET source generator for generating object mappings. No runtime reflection.

A modern, cross platform IDE for .NET, built with .NET & Godot

Roslynator is a set of code analysis tools for C#, powered by Roslyn.

Run C# scripts from the .NET CLI.

Cross-platform C# editor based on Roslyn

PeachPie - the PHP compiler and runtime for .NET and .NET Core

A list of C# Source Generators (not necessarily awesome) and associated resources: articles, talks, demos.

A cross-platform C# editor and playground.

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! 🚀

OmniSharp server (HTTP, STDIO) based on Roslyn workspaces

基于 Roslyn 的 C# 动态程序集构建库，该库允许开发者在运行时使用 C# 代码构建域 / 程序集 / 类 / 结构体 / 枚举 / 接口 / 方法等，使得程序在运行的时候可以增加新的模块及功能。Natasha 集成了域管理/插件管理，可以实现域隔离，域卸载，热拔插等功能。 该库遵循完整的编译流程，提供完整的错误提示， 可自动添加引用，完善的数据结构构建模板让开发者只专注于程序集脚本的编写，兼容 stanadard2.0 / netcoreapp3.0+, 跨平台，统一、简便的链式 API。 且我们会尽快修复您的问题及回复您的 issue.

C# Source Generator based dependency injection container implementation.

A powerful C# Roslyn analyzer that uses static analysis to detect bugs, surface security issues, and enforce best practices—helping developers and AI write more reliable code.

Vulnerability Patterns Detector for C# and VB.NET

Code analyzer for C# and VB.NET projects

Convert code from C# to VB.NET and vice versa using Roslyn

Curated list of awesome Roslyn books, tutorials, open-source projects, analyzers, code fixes, refactorings, and source generators

A utility to perform design-time builds of .NET projects without having to think too hard about it.

Everything is a Plugin in .NET

Expose project and assembly level information as constants in the ThisAssembly class using source generators powered by Roslyn.