CloudMounter is a system utility for connecting to different cloud storage services and web servers and mounting them to your Mac as local disks.
Free version of CloudMounter allows you to use the first mounted accounts of Google Drive, Dropbox, and OneDrive without any limitations. All the other connections, as well as additional accounts of Google Drive, Dropbox, and OneDrive, will be available in read-only mode. A yearly subscription offers a 14-day free trial to test all the connections with more than one mounted account in both read and write modes. Within the trial period, you can cancel the subscription at any time without being charged.