Surftp – Web Based FTP: A free, Web-based FTP client. It’d make me very nervous entering credentials in here, though they swear nothing is logged. Might do in a life-or-death emergency pinch, however.
Surftp is the perfect solution for using your ftp server when you can’t install a full ftp client. It is also the ideal way for web hosting providers to introduce their less knowledgable clients to FTP. Surftp is based off an opensource project and is secure and private.