FileZilla: Allows file transfer using both FTP and encrypted FTP, such as FTPS (server and client) and SFTP. WinSCP: A free and open-source SFTP file manager for Windows.

When using your key file with a Windows 10 or 11 host you similarly put your key into a text file called authorized_keys in a hidden .ssh folder in your user folder. For more security your ...

Learn how to use the scp command to transfer files securely with this step-by-step tutorial by expert Jack Wallen.

That should log you in to the linux-server without asking for a password. If it doesn't, you need to debug the ssh login (check that the key is correct in "authorized_keys" etc.).