FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
Sync.com - Sync. com offers a backup tool and a file sharing service, rolled into one.
Cyberduck - A libre FTP, SFTP, WebDAV, S3, Backblaze B2, Azure & OpenStack Swift browser.
GMX File Storage - The GMX File Storage Manager allows your PC and your GMX File Storage to exchange data via the...
WinSCP - WinSCP is an open source free SFTP client and FTP client for Windows.
Cloudu - Secure German online storage and file sync service. Apps for all major platforms.