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

The .NET Compiler Platform ("Roslyn") provides open-source C# and Visual Basic compilers with rich code analysis APIs. You can build code analysis tools with the same APIs that Microsoft is using to implement Visual Studio!

Install the Preview

• Just want to provide feedback on potential language and IDE features? Check out the End User Preview.
• Want to build code-aware tools that understand C# and Visual Basic? Get the SDK Preview.
• Get the NuGet Roslyn compiler package (in the NuGet package manager console):

Install-Package Microsoft.CodeAnalysis

Source Code

• Clone the sources:

git clone https://git01.codeplex.com/roslyn

• Enhanced source view, powered by Roslyn
• Building, testing and debugging the sources

Getting Started

• Roslyn Overview
• Samples and Walkthroughs
• Roadmap
• Language Design Notes
• FAQ

Contributing

Some of the best ways to contribute are to try things out, file bugs, and join in design conversations. Looking at the known issues is a great place to start.

• Questions, Comments, and Feedback
• How to Contribute