Actually it's not only a Youtube tool, you can download from any site that contains video files. If it's about music then you can extract only the audio stream and keep it as an MP3 file to your disk. All of this for free. You will love it. Have fun. Download video direclty from Youtube and any other site. Extract the audio stream from a video and save it as MP3, WAV, OPUS, etc. Simultaneous downloading files from many sites. Reliable operation. Free of charge.