Smart YoutubeMP3 Converter - Version 1.0 Smart YoutubeMP3 Converter is a free YouTube video to MP3 converter. It allows you to convert and download a video to MP3 audio. This is a fast and free converter. All you need is the full URL of the Youtube video you want to convert, and the software will extract the MP3, and gives you a link to download the audio file. All conversions will be perfomed in high quality mode.Depending on the size of the file and the audio quality, it may take a minute or so - please be patient!