NW.js (w/xvfb) vs ASP.NET Core

The integration of Node with the DOM in NW.js opens up a number of new options in how your headless testing workflow can be facilitated.

The distinct separation of JavaScript contexts, the introduction of a separate node context, and the ability to cross communicate, offers a lot of power and flexibility.

Access to the Native Client offers up more options in implementing your testing workflow.

Thanks to breakthroughs in ROSLYN compiler and the efforts of the .NET COre developer team, code written in C# can reach speeds just a step behind C++.

Can run on Windows, Linux and Mac (also Visual Studio Code editor).

In .NET Core 2.1 and 3.0, new APIs are added that make it possible to write JSON APIs that require less memory, using Span<T> and UTF8 strings, and improve throughput of applications like Kestrel, ASP.NET Core web server. See also Utf8JsonReader.

Both microsoft and 3rd party tutorials are mostly of high quality and encourage you to use the industry best-practices.

Built-in middleware featuring: Authentication, Cookie policy, Health Check, MVC, Session etc.

Ability to host on IIS, Nginx, Apache, Docker, or self-host in your own process.

It is a very secure platform.

Both VS and VSCode are powerful free IDEs that are well integrated with ASP.net Core. VS Community also allows for commercial use for projects with less than 5 developers.