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8-String (4 Courses)

Online Mandolin Tuner

Tune your mandolin accurately. Supports Standard GDAE, Irish GDAD, and Cross Tunings.

Tap Mic to Tune

The "Chorus" Effect

Because mandolins have paired strings, if they are even slightly off from each other, you will hear a "wobble" or beating sound. Use a pick to mute the adjacent string while tuning one at a time.

Same as Violin?

Yes! Standard mandolin tuning (GDAE) is exactly the same as a violin (fiddle). If you play both, you can use the same ear-training reference points.Check out our Violin Tuner →

Popular Mandolin Tunings

Standard (GDAE)

The most versatile tuning, used for Bluegrass, Classical, and Jazz. The intervals are perfect fifths: G3, D4, A4, E5.

Irish / Celtic (GDAD)

By dropping the high E string down to D, you get a modal sound that allows for open-string drones in the keys of D and G, which are very common in Irish traditional music.

Open G (GDGD)

Used for slide mandolin or specific Old-Time styles. It creates a G chord when strummed open.

High Bass / Cross (ADAE)

The "Get Up John" tuning. The bottom strings are raised effectively, creating a very bright, driving sound. Be careful tuning up—old strings might snap!