1. CoreHome repository for .NET Core
2. Platform CompatRoslyn analyzer that finds usages of APIs that will throw PlatformNotSupportedException on certain platforms.
3. FsharpThe F# compiler, F# core library, F# language service, and F# tooling integration for Visual Studio
4. DocsThis repository contains .NET Documentation.
5. Dotnet Api Docs.NET API reference documentation (.NET Framework, .NET Core, .NET Standard and Xamarin)
6. DocfxTools for building and publishing API documentation for .NET projects
7. RoslynThe Roslyn .NET compiler provides C# and Visual Basic languages with rich code analysis APIs.
9. SignserviceCode Signing service and Client for Authenticode, NuGet, VSIX, and more.
10. VblangThe home for design of the Visual Basic .NET programming language and runtime library.
12. Cli LabA guided tool will be provided to enable the controlled clean up of a system such that only the desired versions of the Runtime and SDKs remain.
14. Extensions.NET APIs for commonly used programming patterns and utilities, such as dependency injection, logging, and configuration.
15. MbmlbookSample code for the Model-Based Machine Learning book.
16. TryTry .NET provides developers and content authors with tools to create interactive experiences.
17. CoreclrCoreCLR is the runtime for .NET Core. It includes the garbage collector, JIT compiler, primitive data types and low-level classes.
20. Source BuildA repository to track efforts to produce a source tarball of the .NET Core SDK and all its components
22. Aspnetcore ToolingTools for ASP.NET Core apps, such as MSBuild targets, Visual Studio extensions, and command line tools. (Open issues on https://github.com/dotnet/aspnetcore/issues)
23. GraphicscontrolsExperimental GraphicsControls - Build drawn controls (Cupertino, Fluent and Material)
24. Spark.NET for Apache® Spark™ makes Apache Spark™ easily accessible to .NET developers.
27. SamplesSample code referenced by the .NET documentation
29. EfcoreEF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.
30. CorefxlabThis repo is for experimentation and exploring new ideas that may or may not make it into the main corefx repo.
31. LlilcThis repo contains LLILC, an LLVM based compiler for .NET Core. It includes a set of cross-platform .NET code generation tools that enables compilation of MSIL byte code to LLVM supported platforms.
32. WcfThis repo contains the client-oriented WCF libraries that enable applications built on .NET Core to communicate with WCF services.
36. BlazorBlazor moved to https://github.com/dotnet/aspnetcore
37. SymstoreImplements API for retrieval of symbols and other debug artifacts from symbol store.
40. InferInfer.NET is a framework for running Bayesian inference in graphical models
41. IotThis repo includes .NET Core implementations for various IoT boards, chips, displays and PCBs.
42. PinvokeA library containing all P/Invoke code so you don't have to import it every time. Maintained and updated to support the latest Windows OS.
43. Dotnet CiRepository containing scripting for the dotnet-ci Jenkins instance.
45. Ef6This is the codebase for Entity Framework 6 (previously maintained at https://entityframework.codeplex.com). Entity Framework Core is maintained at https://github.com/dotnet/efcore.
46. CodeformatterTool that uses Roslyn to automatically rewrite the source to follow our coding styles
48. Maui.NET MAUI is the .NET Multi-platform App UI, a framework for building native device applications spanning mobile, tablet, and desktop.
50. SdkCore functionality needed to create .NET Core projects, that is shared between Visual Studio and CLI