Grayjay enables you to create and watch video content in your own terms, fully retaining ownership and having control over what you watch
PlasmaTube
Kirigami YouTube video player based on QtMultimedia and youtube-dl.
AudioTube
Client for YouTube Music
QMPlay2
QMPlay2 is a video and audio player. It can play all formats supported by FFmpeg, libmodplug (including J2B and SFX). It also supports Audio CD, raw files, Rayman 2 music and chiptunes. It contains YouTube and MyFreeMP3 browser.
Persepolis
Persepolis is a download manager & a GUI for Aria2.
Olivia
Elegant music player for LINUX
FreeTube
FreeTube is an open source desktop YouTube player built with privacy in mind.
ClipGrab
ClipGrab is a free downloader and converter for YouTube, Vimeo, Facebook and many other online video sites.