NewsPal is iOS application that automatically downloads Web sites from the Internet
HTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
Web ScrapBook - A browser extension that captures the web page faithfully with highly customizable configurations.
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.
WebCopy - Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
Offline Pages Pro - Offline Pages Pro is probably the world’s most advanced offline browser.
Website Downloader - Download source code from any website