Free Online Mandolin Tuner for Standard and Shifted Tunings
Tune your mandolin with clean reference pitches on Protuningtool.com. Start with standard G D A E, shift the tuning up or down, hear each course one at a time, or play the full set in order before practice.
Use this mandolin tuner to hear G3, D4, A4, and E5 reference pitches for a standard mandolin.
Best Way to Use This Tuner
Tune first, then move straight into chords, scales, and practice drills while your mandolin is still ready to go.
Mandolin Tuner
Click any course to hear its reference pitch. Click the same course again to stop. Use Tuning Shift for half-step and whole-step changes, or use Play All Courses to hear the full tuning sequence.
4-Course Mandolin Reference
Use this tuner for everyday mandolin setup, warmups, chord work, scale practice, and song prep. Tuning before you play saves time and makes everything else sound better.
Helpful Mandolin Tools
Once your mandolin is in tune, keep the momentum going with tools that fit naturally into the same practice session.
Mandolin Tuner FAQ
Quick answers for using this mandolin tuner effectively.
What is standard tuning for a mandolin?
Standard tuning is G3, D4, A4, E5, moving from the lowest-pitched course to the highest-pitched course.
How do I use this online mandolin tuner?
Click a course button to hear that pitch. Match your mandolin course to the reference sound. Click the same button again to stop, or use the Stop button to silence everything.
What does Tuning Shift do?
Tuning Shift moves all the reference pitches together. That helps if you want to tune down a half step, down a whole step, up a half step, or up a whole step.
What is Play All Courses for?
Play All Courses gives you the full sequence of course pitches one after another. It is useful for checking the whole mandolin quickly before you start playing.
Keep Going After You Tune
A tuned mandolin is the starting point, not the finish line. Jump into chord charts, scale finding, and mandolin practice drills while your instrument is already dialed in.
