FTP Rush - FTP Rush is the most powerful and free FTP/FXP/SFTP/TFTP client sofware for Windows.
vsftpd - Very secure FTP Daemon, a secure, fast FTP server for UNIX systems, including Linux.
FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
CoffeeCup Free FTP - The drag-and-drop FTP client that's as powerful as it is user friendly. Fast file transfers, intuitive work flow, and best of all, it's free! Download CoffeeCup Free FTP today.
CrossFTP - CrossFTP is a powerful FTP and Amazon S3 client. DownloadDownload CrossFTP/Pro/Enterprise for Windows, Mac . FeaturesCrossFTP.
WinSCP - WinSCP is an open source free SFTP client and FTP client for Windows.