# .NET Core Repos There are many repos that make up .NET Core. To file an issue, make a PR, or engage on specific topics, it is best to engage with developers working on the right repo. A largely complete set .NET Core repositories follows. ## .NET Core * [dotnet/cli](https://github.com/dotnet/cli) - .NET Core CLI tools * [dotnet/core-setup](https://github.com/dotnet/core-setup) - .NET Core Runtime Installers and application model. * [dotnet/corefx](https://github.com/dotnet/corefx) - .NET Core APIs * [dotnet/coreclr](https://github.com/dotnet/coreclr) - .NET Core runtime * [dotnet/docs](https://github.com/dotnet/docs) - .NET documentation * [dotnet/sdk](https://github.com/dotnet/sdk) - .NET Core SDK (used by Visual Studio and CLI) * [dotnet/dotnet-docker](https://github.com/dotnet/dotnet-docker) - .NET Core Docker images ## .NET Standard * [dotnet/standard](https://github.com/dotnet/standard) - .NET Standard definition ## Languages * [dotnet/roslyn](https://github.com/dotnet/roslyn) - Roslyn and C# * [dotnet/csharplang](https://github.com/dotnet/csharplang) - C# spec * [dotnet/vblang](https://github.com/dotnet/vblang) - VB spec * [dotnet/netcorecli-fsc](https://github.com/dotnet/netcorecli-fsc) - F# integration into .NET CLI ## NuGet * [nuget/home](https://github.com/nuget/home) - NuGet client ## ASP.NET Core * [aspnet/home](https://github.com/aspnet/home) - ASP.NET Core framework * [aspnet/Docs](https://github.com/aspnet/Docs) - ASP.NET and ASP.NET Core documentation ## WCF * [dotnet/wcf](https://github.com/dotnet/sdk) - WCF ## .NET Framework * [microsoft/dotnet](https://github.com/microsoft/dotnet) -- catch-all repository for .NET (where most .NET Framework issues are filed) * [microsoft/dotnet-framework-docker](https://github.com/microsoft/dotnet-framework-docker) - .NET Core Docker images