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.
Features

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)
• Cross-platform. Runs on Windows, Linux, *BSD, Mac OS X and more
• IPv6 support
• Available in many languages
• Supports resume and transfer of large files >4GB
• Tabbed user interface
• Powerful Site Manager and transfer queue
• Bookmarks
• Drag & drop support
• Configurable transfer speed limits
• Filename filters
• Directory comparison
• Network configuration wizard
• Remote file editing
• Keep-alive
• HTTP/1.1, SOCKS5 and FTP-Proxy support
• Logging to file
• Synchronized directory browsing
• Remote file search