FileZilla

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.

Among others, the features of FileZilla include the following:

Easy to use
Supports FTP, FTP over SSL/TLS (FTPS) and SSH File Transfer Protocol (SFTP)
IPv6 support
Available in many languages
Supports resume and transfer of large files greater than 4GB
Powerful Site Manager and transfer queue
Bookmarks
Drag & drop support
Configurable transfer speed limits
Filename filters
Network configuration wizard
Remote file editing
Keep-alive
HTTP/1.1, SOCKS5 and FTP-Proxy support
Logging to file

Website:
http://filezilla-project.org/

Downloads:
Download FileZilla 3.5.1 from FileHippo.com