What is the difference between the FTP, FTPS and SFTP protocols?

in short:

FTP : it is the File Transfer Protocol without any type of encryption, ie it is an unsafe mode.

SFTP : File Transfer Protocol by SSH, that is encrypted, this is a more secure mode relative to FTP .

FTPS : FTPS is an FTP with an SSL layer for security. "Secure File Transfer Protocol"

Given the differences of 3, use what is most appropriate for your file, if it is a sensitive file that should not be intercepted, use SFTP now if, in addition to encryption, you you want to make sure you are communicating with the real server, use FTPS because you have SSL. If it is neither of the above, normal ftp will be enough for you.