WinSCP is an open source free SFTP client, FTP client, WebDAV client, S3 client and SCP client and file manager for Windows. Its main function is file transfer between a local and a remote computer. Beyond this, WinSCP offers scripting and basic file manager functionality.
A lightweight FTP client software. FFFTP has many useful feature such as directory mirroring, character encoding conversion, Firewall and SOCK, one-time password support, and so on.
SmartFTP is a fast and reliable FTP, FTPS, SFTP, HTTP, Amazon S3, WebDAV, Google Drive, Google Cloud Storage, Microsoft OneDrive, Backblaze B2, Telnet, and Terminal client with lots of features and a modern user interface.
A libre server and cloud storage browser for Mac and Windows with support for FTP, SFTP, WebDAV, Amazon S3, OpenStack Swift, Backblaze B2, Microsoft Azure & OneDrive, Google Drive and Dropbox.