Core FTP Lite
Core FTP Lite is a free FTP Client with SSL/TLS, SSH/SFTP, IDN, site to site transfers, dragdrop, browser integration, user-friendly interface(s), FTP/HTTP Proxy, Socks 4/5 support, remote file searching, queue manager, auto retry and resume of transfers, transfer bandwidth control, htaccess editing, advanced dir listings, queueing of multiple FTP transfers on multiple sites, sessions, start, stop, and resume of FTP transfers, advanced directory listings, .htaccess editing, auto s/key support, keep alive, auto-reconnect, file permissions (chmod), and much more. Free for commercial and business use.
* Queueing of multiple FTP transfers on multiple sites
* Sessions to save FTP transfers for later resuming
* Recursive uploading, downloading, and deleting
* Optional reconnecting of lost connections
* Legacy SFTP client support and options
* Low memory footprint (~4mb connected - most clients are 8-12mb)
* All this and more for free - Try and find another commercially supported free ftp client with SSL & SFTP (there aren't any!).
The license of this software is Free Trial Software, the price is $24.95, you can free download and get a free trial.