Tools & Resources > Online Tuner
Online Tuner for Open Tunings
Tune your guitar to Open D, DADGAD, Open G, Open C, Open A, Open E, minor open tunings, and G Modal using the online tuner, step-by-step instructions, or reference tones.
Tip: Take the free online lesson Get Started with Open Tunings.
Tuner for Open D
Select a string, start the mic tuner, play the note clearly, and adjust the string until the meter shows that it’s in tune.
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Difference
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Note: The mic tuner works best in a quiet room. Use one string at a time.
Reference Tones for Open D
Click a string below and tune your guitar until it matches the reference tone.
Note: The lowest notes may be difficult to hear through built-in phone or computer speakers.
Hear the selected tuning as a single open-string strum:
Fretboard Diagram for Open D
Use this diagram to see where the notes sit on the fretboard in Open D tuning.