ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
HTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
Awesome Screenshot - Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and...
WebCopy - Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
BrowseShot - BrowseShot lets you capture a PNG of the full scrollable area of a website.
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.