What is Dropbox?
Dropbox is a software that provides a file hosting service and an automatic synchronization of files through the web. In other words, thanks to Dropbox, it is possible to load a large amount of files (up to 10GB!) in a space which is always automatically synchronized and that can be shared with other people. Subscribing to Dropbox is free (there is also a paying version for those who need to upload and share files much heavier, up to 100GB).
The following video may be helpful to better understand how Dropbox works:
(last update: 23.08.2021)