We have different types of youtube to mp3 converter softwares.Where in some software gives high quality at slower speed of converting. And some may give you low size size file at quicker converting time.
Here are the various kind of youtube to mp3 converting softwares
1. youtubetomp3 Setup
This software is a small file, you can dowanload with in a few seconds.
And a very fast converter.
2. FastestFreeYouTubeDownloader-Setup-4.1.exe
This software is up to 15mb. But it converts multiple video files simultaneously.
It is very much faster than the previous.