Hi, I recently got a free platform independent file transfer application from Google search engine called AnyClient - The Free No-Install FTP, FTPS, SFTP and WebDAV Client . It supports all major file transfer protocols including FTP/S, SFTP and WebDAV/S. AnyClient is available both as a web based service requiring no software installation, and as a downloadable application that you can install locally. Hope this will work out for you.
Good luck!