FileZilla Server - Download FileZilla Server 0.9.60.2 for Windows
HTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
ProFTPD - The Official ProFTPD web site. ProFTPD is a high-performance, extremely configurable, and most of all a secure FTP server, featuring Apache-like configuration and blazing performance.
WebCopy - Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
FileZilla - FileZilla is an FTP, or file transfer protocol, client. It lets individuals transfer single files or batches to a web server. For many years, FTP was the standard for website design. Read more about FileZilla.
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.