In contrast, a YouTube songs downloader software will cost you a bit of time on the installation, but wins in the long period of service, stable, no variety of pop ads. Moreover, a YouTube video songs free downloader can update to cope with the constantly changes of video encryption algorithm. Free HD Video Converter Factory is such a free but powerful YouTube songs downloader. It will let you download YouTube music and convert to 500+ formats like MP4, MP3, etc. It is not only a YouTube downloader, but a full downloader manager that can download music from other popular video sites: Dailymotion, Twitter, Facebook and more.