4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
HTTrack - HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility.
streamWriter - streamWriter records music broadcasted by internet-radiostations. Features:
WebCopy - Cyotek WebCopy is a free tool for copying full or partial websites locally onto your harddisk for offline viewing.
Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
SiteSucker - SiteSucker is a Macintosh application that automatically downloads Web sites from the Internet.