WinSCP is an open source free SFTP client, SCP client, FTPS client and FTP client for Windows. Its main function is file transfer between a local and a remote computer. Beyond this, WinSCP offers scripting and basic file manager functionality.
Features
Integration with Windows (drag&drop, URL, shortcut icons)
All common operations with files
Support for SFTP and SCP protocols over SSH-1 and SSH-2 and plain old FTP protocol
Batch file scripting and command-line interface
Directory synchronization in several semi or fully automatic ways
Support for SSH password, keyboard-interactive, public key and Kerberos (GSS) authentication
Integrates with Pageant (PuTTY authentication agent) for full support of public key authentication with SSH
Optionally stores session information
Optionally supports portable operation using a configuration file in place of registry entries, suitable for operation from removable media
Windows 9x/XP/Vista/7