VPlayer - VPlayer - a free music player for VKontakte.
4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
Emit - Emit can stream from a Windows/Mac/Linux machine to an android/iOS device.
Video DownloadHelper - Browser extension to download videos from the Web
MX Player - Powerful video player with advanced hardware acceleration and subtitle support.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.