How do YouTube-to-MP3 sites work? How would one go about building such a site? What libraries/technologies are used? - Quora
GitHub - leerob/youtube-to-mp3: ⚡️Electron application to convert and download YouTube videos as MP3s
GitHub - MichaelBelgium/Youtube-API: A way to host your own API that converts youtube video's to mp3/mp4 and returns a download/stream link and information.
GitHub - Dalero/YouTube-MP3-API-iFrame: The Free YouTube MP3 API iframe creates mp3 Download Buttons in your Website.
![YouTube Video Download API - An api to convert and get downloadable video and audio links | Product Hunt YouTube Video Download API - An api to convert and get downloadable video and audio links | Product Hunt](https://ph-files.imgix.net/9c167b69-c987-4e4a-bab7-b08baeabe151.png?auto=format&auto=compress&codec=mozjpeg&cs=strip)