WinSCP - WinSCP is an open source free SFTP client and FTP client for Windows.
Hitonic FTPSync - Fast file uploading from a local computer to an FTP server!
My Commander - My Commander (MyCO) is 'the smallest - smartest - fastest file manager in the world', for Windows. Small and smart, MyCO uses less of your computer's memory while it's running.
LAN-Share - LAN Share is a cross platform local area network file transfer application, built using Qt GUI...
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.
Forklift - The most advanced dual pane file manager and file transfer client for macOS.