FileZilla is a free, open source file transfer protocol (FTP) software tool that allows users to set up FTP servers or connect to other FTP servers in order to exchange files. FileZilla traditionally supported File Transfer Protocol over Transport Layer Security (FTPS). The client software for FileZilla is available for all platforms and is free.
Unlike the commonly chosen alternative form of security in FTP, secure file transport protocol (SFTP), FTPS is less firewall-friendly and requires the opening of a number of ports for its operation. For those who have security requirements for SFTP, previously a secondary client was required but the security has been updated to include both options.
FileZilla's paid pro version provides users with the ability to connect to many online storage providers including WebDAV, Amazon S3, Backblaze B2, Dropbox, Microsoft OneDrive, Google Drive, Microsoft Azure Blob and File Storage, and Google Cloud Storage.
Setting up a server in FileZilla is simple, although it is only supported on Windows platforms. To create a new server site, a user downloads the software, opens it and goes to the file menu. In the file menu one chooses site manager. One provides the host name, type of FTP protocol, login method and change from passive connection if required.