.NET Core is the latest version of .NET Framework, a free, open-source, general-purpose development platform supported by Microsoft. It is a cross-platform framework that runs on Windows, macOS and Linux operating systems.
.NET Core is written from scratch to make it a modular, lightweight, fast and cross-platform framework. It includes the core features required to run a basic .NET Core app. The .NET Core application speeds up performance, reduces memory footprint and is easy to maintain.