Alternative apps to Cyberduck:

Cyberduck Alternatives
With an easy to use interface, connect to FTP, SFTP, WebDAV, Amazon S3, Google Cloud Storage and Rackspace Cloud Files.
Cyberduck is a libre server and cloud storage browser for Mac and Windows with support for FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive and Dropbox. Read more.