Is KANTAN Chord safe?

Converts song chords on supported chord sites into Roman numerals or Nashville-style number degrees.

This extension works on listed chord websites such as Ultimate Guitar, U-フレット, 楽器.me, J-Total Music, Guitarians.com, and 91譜. Its popup lets users view original chords, transpose keys, or display chords as Roman numerals or numeric degrees, and it shows automatically analyzed key banners for songs.