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.
HTTPie - CLI HTTP that will make you smile. JSON support, syntax highlighting, wget-like downloads, extensions, and more.
CloudBerry Box - CloudBerry Box provides bi-directional synchronization of data across remote computers.
Yummy FTP Pro - Pro-level, fast, reliable FTP/S + SFTP + WebDAV/S client.
Yandex.Disk - Files on Yandex.Disk won't get lost if your phone or computer breaks.