A free program for Android, by HappyMusicTime.

Listen to your favorite songs from all over the world. Mp3 Converter – Audio Extractor lets you convert music videos on your device so you can listen to your favorite music whenever you want and wherever you are.

This program converts music videos into MP3 format to easily play them on your device. This application supports a bunch of video and audio formats.

MP3 Converter is very easy to use on devices. You can save different songs and videos from different artists. With this application, you can also share your saved MP3 files with your friends and family through other apps.