10 YouTube to MP3 Converters to Let You Enjoy Music Offline.
Microsoft Apps
Y2mate: The Best YouTube to Mp3 Converter
Free YouTube to MP3 Converter and Downloader | Wave.video
GitHub - AddonDeveloper/youtube-to-mp3-userscript: The 320 kbps YouTube mp3 userscript generates a 320 kbps - MP3 DOWNLOAD button on YouTube.com. Convert YouTube to mp3 and download the file to your device.