Usage
To download an mp3 from YouTube all you have to do is change the link in the address bar slightly.
When watching a YouTube video on a computer change the URL in the address bar
from:
https://www.youtube.com/watch?v=XXXXXXXXX
to:
https://wwwayoutube.com/watch?v=XXXXXXXXX
If instead you have a link that looks like this:
https://youtu.be/XXXXXXXXX
Change it to:
https://youtu.yt/XXXXXXXXX
For mobile URLs the change:
https://m.youtube.com/watch?v=XXXXXXXXX
To:
https://maayoutube.com/watch?v=XXXXXXXXX
Alternatively you can bookmark the following bookmarklet:
To do so drag and drop it onto your bookmarks bar
Click that bookmark whenever you are watching a video (song) you want to download, and it will download the current video (song); consider it a download button.