FileZilla is a free and open-source, cross-platform FTP application, consisting of FileZilla Client and FileZilla Server. Clients are available for Windows, Linux, and macOS. Both server and client support FTP and FTPS (FTP over SSL/TLS), while the client can in addition connect to SFTP servers. FileZilla's source code is hosted on SourceForge and the project was featured as Project of the Month in November 2003. History FileZilla was started as a computer science class project in the second week of January 2001 by Tim Kosse and two classmates. Before they started to write the code, they discussed under which license they should release it. They decided to make FileZilla an open-source project because many FTP clients were already available, and they didn't think that they would sell a single copy if they made FileZilla commercial. Since its initial development in 2001, FileZilla has been released under the GNU General Public License (GPL). The FileZilla client is currently released under GPL-2.0-or-later, and the server package under AGPL-3.0-or-later. Features These are some features of FileZilla Client: Transfer files using FTP and encrypted FTP such as FTPS (server and client) and SFTP. Support IPv6 which is the latest version of internet protocol Supports resume which means the file transfer process can be paused and continued Ability to overwrite existing files only if the source file is newer Ability to overwrite existing files only if the file size does not match Ability to preserve the time stamps of transferred files, given support by local system (downloading) or target server (uploading). Tabbed user interface for multitasking, to allow browsing more than one server or even transfer files simultaneously between multiple servers. Site Manager to manage server lists and transfer queue for ordering file transfer tasks Bookmarks for easy access to most frequent use Drag and drop to download and upload. Directory comparison for comparing local files and server files in the same directory. When the file doesn't have the same information (name not match, or size not match) it will highlight that file in colour. Configurable transfer speed limits to limit the speed transferring the files, which helps reducing error of transferring Filename filters, users can filter only specific files that have the conditions they want. Network configuration wizard, help configuring confusing network settings in form of step-by-step wizard Remote file editing, for quickly edit file on server side on-the-fly. No need to download, edit