WinSCP - WinSCP is an open source free SFTP client and FTP client for Windows.
vsftpd - Very secure FTP Daemon, a secure, fast FTP server for UNIX systems, including Linux.
FileZilla Secure - A modified version of Filezilla dedicated to keeping your FTP passwords secure.
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.
Transmit - Transmit is an FTP client for Mac OS X and Mac OS Classic (which is unsupported).
PyroBatchFTP - PyroBatchFTP/SFTP helps you to exchange files with internet SFTP servers in an automated way by processing scripts. e.G. to automatically update documents on web servers.