FileZilla is a free and open source FTP client that supports FTP, SFTP, FTPS and WebDAV protocols. It has a graphical user interface and features such as resume and transfer of large files, directory comparison, remote file editing and drag and drop support.
WinSCP is a free and open source FTP client that also supports SFTP, SCP, WebDAV and S3 protocols. It has a graphical user interface and features such as integrated text editor, scripting and automation, batch file transfers and synchronization, and password encryption.
Cyberduck is a free and open source FTP client that also supports SFTP, WebDAV, S3, Backblaze B2, Microsoft Azure, Google Cloud Storage and OpenStack Swift protocols. It has a graphical user interface and features such as integration with external editors, bookmarks, history, and encryption.
FireFTP is a free and open source FTP client that is an extension for the Firefox web browser. It supports FTP, SFTP and FTPS protocols. It has a graphical user interface and features such as resume and transfer of large files, directory comparison, remote file editing, and drag and drop support.
WS_FTP is a commercial FTP client that supports FTP, FTPS, SFTP, SSH, HTTP, HTTPS and SCP protocols. It has a graphical user interface and features such as backup and synchronization, compression and encryption, file integrity verification, and email notifications.