Read also : Canon 5D Mark III: Test, Information, Comparison and Price In response to this wave of converters, we have compiled a list of top five YouTube to mp3 converters which are free, easy to use and really online that is, they don't require the use of any software. Some even require you to download converter software, which is not ideal. Unfortunately, most of the free YouTube to mp3 converters that appear in Google searches are full of spammy pop-ups. List of Best Free & Fast Youtube MP3 Converters