Copy and paste the video link that you want to convert. select ".mp3" in the format field. click the "start" button to initiate the conversion. when the conversion is done, download the file from the link provided.. Convert youtube to mp3 for free, the most trusted youtube to mp3 converter tool. it's fast, free, download instantly and no registration is required.. Free video to mp3 converter automatically fills the title tag and the artwork, taking a snapshot from the middle of video, which can be seen in itunes, winamp or just a windows explorer folder.