I'm Owner of FbTube. FbTube.biz is a completely free online web-based video and audio converter, requiring no special software for its execution. The MP3 MP4 converter does what it sets out for, good old YouTube to MP3 conversion. The website tool is extremely quick and simple. All you need to do is paste the YouTube or other social media link and press convert video button. From here on, you can select the format and quality