PuTTY is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection. It can also connect to a serial port.

A simple, lightweight client for connecting to a Linux shell from your Windows machine!

WinSCP is a popular free SFTP and FTP client for Windows. Moreover, WinSCP is a powerful multi-functional tool that will improve your productivity.

WinSCP can copy files between a local and remote computer using multiple protocols: FTP, FTPS, SCP, SFTP or WebDAV. On the one hand, WinSCP offers an easy to use graphical user interface; you can choose between Windows Explorer look and tabbed twin-panel interface like Norton commander. On the other hand, advanced users can automate WinSCP functionality using .NET assembly or simple batch file scripting.

FileZilla is a powerful FTP-client. It has been designed for ease of use and with support for as many features as possible, while still being fast and reliable. The program offers support for firewalls and proxy connections as well as SSL and Kerberos GSS security.

FileZilla Client is a fast and reliable cross-platform FTP, FTPS and SFTP client with lots of useful features and an intuitive graphical user interface.