Online mandolin tuner

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How to tune a mandolin online

Press “Tap to tune” and allow microphone access so the tuner can hear your mandolin. Pluck one open course and let the notes ring together for a second. The tuner shows the note name and whether you are flat or sharp. Turn the tuning key a little, then pluck again to recheck. Tune each course one at a time until the meter centers on the target note. Repeat once from low to high to confirm tuning.

Standard mandolin tuning and paired strings

Standard mandolin tuning is G D A E from low to high, like a violin but one octave lower. Each note is a pair of strings, called a course, and both strings should match in pitch. Use the note list on the page as your target and tune the lower courses first for a solid reference. When one string is correct, tune its partner to the same reading for a clean, focused sound every time.

Switching string counts and tuning targets for mandolin

Tips for accuracy and staying in tune

Mandolins have short strings and high tension, so small turns change pitch quickly. Pluck with a light, consistent attack and mute nearby courses to avoid extra ringing. If the tuner jumps, pick closer to the middle of the string and let it sustain longer. Tune up to pitch rather than down when possible, and recheck after a few minutes of playing. New strings stretch, so expect a couple of quick touch ups during early sessions.

Tips for accurate and consistent mandolin tuning