Great Downloader easy to use can convert into multiple file formats. Fast and impressive
MotionBox - Open-source desktop video player for streaming websites.
Video DownloadHelper - Browser extension to download videos from the Web
YouTube - Our mission is to give everyone a voice and show them the world.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
YouTube Vanced - Vanced is a modded version of YouTube with many features such as adblocking and background playback
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.