Welcome to the .NET Compiler Platform ("Roslyn")

Windows - Unit Tests

	Debug x86	Debug x64	Release x86	Release x64
master
future
stabilization

Linux/Mac - Unit Tests

	Linux	Mac OSX
master
future
stabilization

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs. It enables building code analysis tools with the same APIs that are used by Visual Studio.

Try new language and IDE features

Just want to provide feedback on new language features and IDE features?

• Try out Visual Studio 2015, which has the latest features built-in.

• Want to keep your box clean? You can use prebuilt Azure VM images with VS 2015 already installed.

Build tools that understand C# and Visual Basic

Get started building diagnostics, code fixes, refactorings, and other code-aware tools!

• Getting Started On Visual Studio 2015

Or, you can grab the latest NuGet Roslyn compiler package. From the NuGet package manager console:

Install-Package Microsoft.CodeAnalysis

Source code

• Clone the sources: git clone https://github.com/dotnet/roslyn.git
• Enhanced source view, powered by Roslyn
• Building, testing and debugging the sources

Get started

• Tutorial articles by Alex Turner in MSDN Magazine
  • Use Roslyn to Write a Live Code Analyzer for Your API
  • Adding a Code Fix to your Roslyn Analyzer
• Roslyn Overview
• API Changes between CTP 6 and RC
• Samples and Walkthroughs
• Documentation
• Analyzer documentation
• Syntax Visualizer Tool
• Roadmap
• Language Feature Status
• Language Design Notes
• FAQ

Contribute!

Some of the best ways to contribute are to try things out, file bugs, and join in design conversations.

• How to Contribute
• Pull requests: Open/Closed

Looking for something to work on? The list of up for grabs issues is a great place to start.

.NET Foundation

This project is part of the .NET Foundation along with other projects like the class libraries for .NET Core.