FileZilla Client is a free, open source, cross-platform FTP client. Binaries are available for Windows, Linux, and Mac OS X. It supports FTP, SFTP, and FTPS (FTP over SSL/TLS).
FileZilla Server is...
FileZilla is a cross-platform graphical FTP, FTPS and SFTP client a lot of features, supporting Windows, Linux, Mac OS X and more. FileZilla Server is a reliable FTP server for Windows.
WinSCP is a SFTP client and FTP client for Windows. Its main function is the secure file transfer between a local and a remote computer. It uses Secure Shell (SSH) and supports, in addition to Secu...
FFFTP is lightweight FTP client software. FFFTP has many useful feature such as directory mirroring, character encdoging conversion, Firewall and SOCK, one-time password support, and so on.