WinSCP

http://winscp.net/eng/download.php

* Graphical user interface
* Translated into several languages
* Integration with Windows (drag&drop, URL, shortcut icons)
* U3 support
* 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
* Integrated text editor
* 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
* Explorer and Commander interfaces
* Optionally stores session information
* Optionally supports portable operation using a configuration file in place of registry entries, suitable for operation from removable media