The Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
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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.
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
A list of C# Source Generators (not necessarily awesome) and associated resources: articles, talks, demos.
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
The fastest deep cloning library for .NET – zero-config, works out of the box.
🐵 HTTP mock server, useful to stub services and simulate dynamic API responses, leveraging ASP.NET Core features, built-in fake data generation and pure C# scripting
An open-source IDE for C# and .NET, built with Avalonia, for Windows, macOS and Linux: a Roslyn-powered editor, its own debugger with Hot Reload, a CPU and memory profiler, XAML tooling for Avalonia and WPF, and an MCP server for coding agents.
A C# source generator to create an enumeration class from an enum type. With this package, you can work on enums very, very fast without using reflection.
A Roslyn based C# source generation framework
A source generator that automatically migrates your logging calls to the LoggerMessage version
Generates a synchronized version of an async method
The MongoDB Analyzer is a free tool that helps you understand how your code translates into the MongoDB Query API.