FTP Client

Free · Open
A file transfer client for FTP and SFTP, WebDAV, and cloud storage with support for Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive and Dropbox
AlertCaution is advised.

Free · Open
A cross-platform FTP application for secure file transfer between computers and remote servers using protocols like FTP, FTPS, and SFTP
AlertCaution is advised.

Paid
Mount server and cloud storage as a disk in Finder on macOS and File Explorer on Windows, enabling remote file access and management
AlertCaution is advised.

Free · Open
A terminal emulator, serial console and network file transfer application
AlertCaution is advised.

Free · Open
Secure file transfer, file management, and synchronization between a Windows computer and remote servers using various protocols
AlertCaution is advised.