Free Download Manager - It is a powerful modern download accelerator and organizer for Windows and Mac.
y2mate - Y2mate.
aTube Catcher - aTube Catcher also can burn in DVD/VCD your videos without use any other third party software.
YTMP3.co.com - YTMP3.co.com is a 100% free multi-format audio and video downloader that lets you convert video and audio from most social media platforms. No annoying ads.
JDownloader - JDownloader is a free downloading tool that enables you to download files from over a hundred hosting sites. The tool is compatible with Linux, Mac and Windows operating systems. Read more about JDownloader.
Savemp3.cc - An online free YouTube converter which allows you to convert videos and audios to MP4, MP3, M4A from YouTube, Facebook, Instagram, MixCloud, Dailymotion, VEVO, bilibili, niconico, etc. Supports HD MP4, 720p, 1080p video and 320kbps MP3.