4k Video Downloader - 4K Video Downloader is a software program that helps people download video files from sites such as Facebook, YouTube and Dailymotion.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Video DownloadHelper - Browser extension to download videos from the Web
SMPlayer - SMPlayer is a free video and audio player for both Windows and Linux that allows you to play almost all media files without having to install additional codecs. Read more about SMPlayer.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
MPV - MPV is an audio and movie player based on MPlayer and mplayer2.