WinSCP
Secure file transfer for Windows PCs
WinSCP is a free, open-source file transfer client for Windows that helps you move and manage files between your PC and a remote server. It is mainly built for secure transfers, with support for common protocols such as FTP, SFTP, SCP, WebDAV, and Amazon S3, making it useful for anyone who regularly works with hosted files, server folders, or remote storage.
The software is practical rather than flashy.