How to organize file storage for a site?

Question

Data storage

There is a usual virtual hosting.
On a separate subdomain are the files that the main site uses.
A solution is needed for the convenience of working with files on this subdomain through a browser.
Of the chips you need:
1. Authorization, of course 2. Uploading
, deleting files
3. Creating / deleting folders 4. The possibility of multiple file uploads
is desirable files (for the main site) and be able to create folders Please advise =)

Answer 1

https://selectel.ru/services/cloud-storage/
( ref )
Cloud storage. You connect both under the domain to the site, payment for the used space and traffic, the prices are good. You can work from a browser, you can from a desktop client, an FTP client, through the API. CDN provides good speed and low ping.

Answer 2

phpfm.sourceforge.net