WinSCP is free sftp client / scp client / ftp client for windows. It helps to transfer files between local and remote servers. The remote server can be window or linux or unix box.

Its main advantage is :

* It have explorer
* Windows like drag and drop options
* one side local and other side remote computer file manager
* If required stored the session information
* Integrated text editor
* Can perform all common operations with files.

You can download from