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

Windows - Unit Tests

	Debug x86	Debug x64	Release x86	Release x64	Determinism
stabilization (1.3)
master (2.0 Preview 3)

Linux/Mac - Unit Tests

	Linux	Mac OSX
stabilization (1.3)
master (2.0 Preview 2)

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.

Download C# and Visual Basic

Want to start developing in C# and Visual Basic? Download Visual Studio 2015, which has the latest features built-in. There are also prebuilt Azure VM images available with VS 2015 already installed.

To install the latest release without Visual Studio, run one of the following nuget command lines:

nuget install Microsoft.Net.Compilers   # Install C# and VB compilers
nuget install Microsoft.CodeAnalysis    # Install Language APIs and Services

To get the latest "preview" drop, published about once per month, add the -pre switch to the nuget commands.

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
• Syntax Quoter Tool
• Roadmap
• Language Feature Status
• Language Design Notes
• FAQ
• Also take a look at our Wiki for more information on how to contribute, what the labels on issue mean, etc.

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.

This project has adopted a code of conduct adapted from the Contributor Covenant to clarify expected behavior in our community. This code of conduct has been adopted by many other projects. For more information see the Code of conduct.

.NET Foundation

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