Martin Guitar Tuner

Free guitar tuner app from Martin offers tools for players of every skill.

Guitar players of every skill level can benefit from this free guitar tuner app from C.F. Martin & Co. Not only can you expertly tune your guitar but you can practice with our ear trainer to become a more efficient ear-tuner. Also included in the app is our custom guitar builder where you can create the acoustic guitar of your dreams. Then you can use our Pro-Tip videos to learn everything from properly stringing your guitar to using a capo.