WinSCP
WinSCP is ideally for webmasters and designers who need to update websites or for those who wish to copy to and from a remote computer. WinSCP easily connects to an SSH server with SFTP or SCP service.
WinSCP supports numerous encryption algorithms (AES, Blowfish, DES and 3DES) and also has private keys available when you need to transfer sensitive data securely.
