FileZilla is a widely used free and open-source application for transferring files between computers over a network. It is distributed as two main components: the FileZilla Client, a cross-platform graphical program for connecting to remote servers, and FileZilla Server, a server implementation available for Windows. The software supports several transfer protocols including FTP, encrypted FTPS, and secure SFTP, making it suitable for both simple website publishing and more security-conscious workflows.

Features

  • Graphical user interface with dual-pane file views, drag-and-drop transfers and a transfer queue.
  • Site Manager and bookmarking for saved connections and credentials.
  • Support for resume and transfer of large files, directory comparison, and remote file editing.
  • Advanced options such as IPv6, proxy support, speed limits and configurable passive/active modes.

FileZilla is released under a permissive free software license and is developed by a community of contributors. The project gained early visibility on code hosting platforms and remains actively maintained, with periodic updates to improve performance and security. The Client runs on Windows, macOS and Linux, while the Server is primarily offered for Windows installations.

Uses and security

Common uses include uploading website files, synchronizing project assets, moving large datasets and performing remote backups. Because plain FTP transmits credentials in clear text, administrators and users are generally encouraged to use FTPS or SFTP for confidential transfers. FileZilla supports key-based authentication for SFTP and configurable TLS settings for FTPS to reduce exposure to interception.

Notable distinctions include the split between client and server editions and its focus on a user-friendly GUI rather than being a command-line tool. Users should download installers from trusted sources and review bundled offers during installation on some platforms. For official downloads and documentation see the project page: FileZilla project.

To get started, install the Client for your platform (Windows builds, Linux and macOS) and create a Site Manager entry with host, protocol and login details. The interface provides a clear transfer queue and logging, so beginners can quickly learn to connect, transfer and verify files while more advanced users can fine-tune performance and security settings.