FileZilla is an easy-to-use, Polish-speaking and free FTP client with open source code. Supports FTP, SFTP and FTPS protocols (FTP after SSL/TLS). The main advantages of FileZilla include resuming interrupted connections (if supported by the server), idle detection, firewall support, Proxy support SOCKS4/5 and HTTP 1.1, encrypted connection support, pre-defined upload and receive speed limit rules, drag-and-drop copy to and from FTP server, custom command definition, site manager, download and upload queue, configurable interface and much more.