Peggo.co
Want to listen to the music of a YouTube video offline? Go to Peggo! Simply insert the YouTube link into the field provided, then click the Recording button to begin converting your video to mp3. Besides features like audio normalization and artist and title tags, Peggo automatically removes unwanted silence from the beginning and end of videos so you get an mp3 with just the good stuff. You can also set the start and end times of the track to get just the part you want.