I would be guessing that you are looking for an open source version of google drive or dropbox.
My answer is there are things that are close but I find them too hard to setup. So I'm going with no.
Dear All,
Hope all doing good. Is there software or app that will enable us to view/edit files directly that are stored in web i.e., If I have stored a file in a web software or app, I just have to open it directly from web and want to edit rather than downloading it or by viewing it as we do in google drive or dropbox

Chowhound
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