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.
Features:
* 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
* Powerful Site Manager and transfer queue
* Drag & drop support
* Configurable Speed limits
* Filename filters
* Network configuration wizard
* Remote file editing
* Keep-alive
* HTTP/1.1, SOCKS5 and FTP-Proxy support.