WinSCP - (Free)
Connect easier to SSH servers for transferring files with WinSCP, a free SFTP and SCP client that is connecting to remote servers securely.
WinSCP is a client for connecting to remote servers securely. The application is able to open SSH sessions with SFTP and SCP. All data circulating on the network will be therefore encrypted for maximum security.
The software interface is very easy to handle since it incorporates the basics of Windows Explorer. WinSCP also includes an editor to edit the files (HTML, PHP, configurations, etc.) directly from the software. It can read the contents of directories, edit or delete files, change permissions on a file or directory, all through the SSH protocol.
SSH is a protocol for secure exchange of information between two computers. SSH can be used to connect from the command line to a remote computer desktop using a program like PuTTY, but this protocol can also be used to transfer files (FTP).