FileZilla is designed as a small but powerful FTP client with many features.
FileZilla includes a site manager to store all your connection details and logins as well as an Explorer style interface that shows the local and remote folders and can be customized independently.

FileZilla offers support for firewalls and proxy connections as well as SSL and Kerberos GSS security.

Additional features include keep alive, auto ascii/binary transfer and more. A nice program for beginners and advanced user alike.

Here are some key features of "FileZilla":

· Ability to resume Uploads/Downloads (if the server supports it)
· Custom Commands
· Site Manager with folders
· Keep Alive system
· Timeout detection
· Firewall support
· SOCKS4/5 and HTTP1.1 Proxy support
· SSL secured connections
· SFTP support
· Upload/Download Queue
· Drag&Drop
· Multi-language support
· GSS authentication and encryption using Kerberos.