What is FTP?
File Transfer Protocol (FTP) is a connection that you can use to transfer files over Transmission Control Protocol (TCP)/Internet Protocol (IP). You can use FTP to connect to a server you own and interact with its files.
More About FTP
There are several ways to interact with a website that you own or have back-end access to. You can use the hosting control panel, a Content Management System (CMS) dashboard, or FTP.
If you have FTP access to a server, you can connect to it using a client or command line. That connection will enable you to manage the files and directories you have access to. You can create, modify, or delete files and directories using FTP.
FTP also makes it easier to upload large numbers of files (or files with large sizes) to your server. With FTP, you can resume the upload or download process if you encounter problems with the server or the connection.