FileZilla is a small but powerful FTP client with many features. It 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. It's very easy to use. The program 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.
Features: 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