iCloud: What is iCloud Drive?
With iCloud Drive, you can securely store your files in iCloud, and access them on iCloud.com and all your computers and iOS devices. With macOS Sierra or later, you can have all the files in the Desktop and Documents folders on your Mac stored automatically in iCloud Drive. That way, you can save files right where you usually keep them on your Mac, and they become available on iCloud.com and all your computers and iOS devices.
On iCloud.com, you can use iCloud Drive to upload and download files, share files, delete files, organize files in folders, rename files, and recover recently deleted files. Go to icloud.com/iclouddrive and sign in using your Apple ID (the one you use with iCloud).
For more information about iCloud storage and family storage plans, see Upgrade your iCloud storage.
Important: To use iCloud Drive on your devices, they must meet minimum system requirements and have iCloud Drive turned on. See the Apple Support article System requirements for iCloud.