FileZilla is free, cross-platform FTP application software, consisting of FileZilla Client and FileZilla Server. It is available for Windows, Linux, and Mac OS X. It features an easy to use two-sided interface, one side being the local file system and the other being the server. Users can drag and drop files between the two. Filezilla can also save profiles for connections you frequently use.
It supports FTP, SFTP, and FTPS (FTP overSSL/TLS). Support for SFTP (SSH File Transfer Protocol) is not implemented in FileZilla Server.