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!
Try new language and IDE features
Just want to provide feedback on new
language features and
IDE features?
- Try out
Visual Studio "14" CTP 3, which has our latest features built-in.
- You can also try April's
End User Preview, which installs on top of Visual Studio 2013. (note: this VS 2013 preview is no longer updated)
Build tools that understand C# and Visual Basic
Get started building diagnostics, code fixes, refactorings and other code-aware tools!
- Set up a box with Visual Studio "14" CTP 3. Either...
- Install the
Visual Studio "14" SDK. You'll need to do this even if you're using the Azure VM image.
- Install the
SDK Templates VSIX package to get the Visual Studio project templates.
- Install the
Syntax Visualizer VSIX package to get a
Syntax Visualizer tool window to help explore the syntax trees you'll be analyzing.
Or, you can grab the latest
NuGet Roslyn compiler package. From the NuGet package manager console:
Install-Package Microsoft.CodeAnalysis -Pre
Source code
git clone https://git01.codeplex.com/roslyn
Get started
Contribute!
Some of the best ways to contribute are to try things out, file bugs, and join in design conversations.
Looking for something to work on? The list of
up-for-grabs issues is a great place to start.