Web - showing a web directory like a folder item

This thread is based off an idea I had to show a web Directory like a folder item… Especially one that can download and upload files.
To be fair, this is actually to be used in my desktop app using a Web app included in my appdata files and accessed via the HTML view.
The idea would be to see it like a finder in the icon view. Having drag-and-drop utilities would be a massive bonus👍
Like a lot of my custom built tools (for music theory parsing) I can build it myself - but I think that this could require more heads than just mine!