Comment by machomaster

Another very useful project is SingleFile. I was ecstatic when I found out about its existence.

https://github.com/gildas-lormeau/SingleFile

"SingleFile helps you to save a complete web page into a single HTML file. SingleFile is a Web Extension (and a CLI tool) compatible with Chrome, Firefox (Desktop and Mobile), Microsoft Edge, Safari, Vivaldi, Brave, Waterfox, Yandex browser, and Opera."