NuGet is the Microsoft-supported mechanism for sharing code. It is a definition of how re-usable code is created for .NET projects and bundled into NuGet packages. It is a tool that helps you create a NuGet package. It is a platform where you can publish your NuGet packages to and share it with other developers. It is a package manager that is integrated with Visual Studio which you can use to consume these NuGet packages. How amazing is that!