File Transfer Protocol – or FTP – is essentially the method used to transfer files between computer servers and clients. FTP is used to exchange files to and from computer accounts, to transfer files between an account and a desktop computer, and to access online software. When using FTP, files can be uploaded, downloaded, deleted, moved and renamed on a server. A user generally needs to log in to access the FTP server, unless it is anonymous FTP.
FTP is commonly used to download audio and video files, games, online software, and can also be used in website development to move files from your hard drive to your hosting provider.