Bizdownloader - Bizdownloader is Video Downloader website from top social networking websites like Youtube...
CONV. - Convert YouTube video to MP3, GIF or MP4
Transcoder - Transcoder is a free command-line-based video converter that allows you to convert any size of video into a range of audio and video formats.
Downie - Video download for OS X. Downie supports at this moment over 1,000 different sites.
AVS Video Converter - AVS Video Converter is a handy software for converting to and from major video formats like 4K UHD, MP4, VOB, WMV, 2K QHD, DVD, MPEG4, DCI 4K, MOV, and more.
Yout - YouTube to Mp3 Converter