OpenSilver

You write your interface in C# and XAML, and OpenSilver turns it into a . NET web application that runs in the browser.

OpenSilver is a free, open-source UI framework for building web apps on .

NET, and you can also code in VB or F# if C# is not your language.

The output runs in Google Chrome, Firefox and Safari, and the apps work on Windows, Android and Mac.

The clearest reason to pick OpenSilver is compatibility.

It works with Microsoft Silverlight code and has extensive WPF support, so a team with an older Silverlight or WPF codebase can carry that work forward instead of rewriting the interface from scratch.

It also lets you use enterprise-grade controls and libraries rather than building every component yourself.

Pricing is free, and the open-source model means you can read the code and see how the framework behaves.

If your team already knows XAML, the learning curve should be short.

If you come from JavaScript frameworks, expect a different way of working.