Mountain Duck

Mountain Duck lets you mount server and cloud storage as a disk in Finder on macOS and the File Explorer on Windows. With Mountain Duck, applications on you computer can handle any file in your cloud storage lika a local file. Mountain Duck integrates with various popular protocols and third-party services like FTP, SFTP, WebDAV, Amazon S3, Google Storage, OpenStack Swift, Microsoft Azure, Microsoft OneDrive, Microsoft SharePoint, Dropbox, Google Drive, Wasabi, Backblaze B2 and Joyent Triton.