Top 5 Online YouTube to MP3 Converters | Leawo Tutorial Center
YouTube to Mp3 Converter | Convertmp3 A YouTube to mp3 converter allows you to extract a video as an mp3 audio which gets added to your MP3 collection. - ppt download
How to Convert YouTube to MP3 on Windows, Mac and Mobile
How do YouTube-to-MP3 sites work? How would one go about building such a site? What libraries/technologies are used? - Quora
How would I make my own YouTube to MP3 converter website? - Quora
Convert YouTube to MP3 using this free software or online converters