Drop D Bass Tuner

Free online Drop D bass tuner — tune your bass to D A D G by ear with your microphone, accurate to the cent. No app, no sign-up.

The notes (low to high)

D1 · A1 · D2 · G2. Drop D bass is standard tuning (E A D G) with only the lowest string lowered a whole step, from E down to D — so it sounds the same note as your D string, one octave lower.

What is Drop D bass tuning?

Drop D drops the thickest string to D, extending your low range by two semitones and putting a low D under your fingers for heavy riffs and root-driven lines. The A, D and G strings are unchanged, so most of your fingering stays the same — only patterns that use the lowest string move.

How to tune to Drop D on bass

1. Open the Drop D bass tuner and allow microphone access.
2. Play your lowest string and slowly loosen it; watch the needle move from E toward D.
3. Stop when it reads D and turns green (within ±5 cents). Tip: it should match your open D string an octave lower.
4. Check the A, D and G strings are still in tune.

Songs that use Drop D bass

• Heavy rock, metal, hard-rock and djent that sit on a low D
• Anything where the guitar is in Drop D and you want the bass to follow the low root

Frequently asked questions

What are the notes for Drop D bass?

Low to high: D A D G — standard bass with the low E dropped to D.

How do I tune my bass to Drop D?

From standard E A D G, lower the thickest (E) string until it reads D, an octave below your D string. The other three stay the same.

Is the Drop D bass tuner free?

Yes — free in your browser with your mic, no app.

Why use Drop D on bass?

For a lower D and easier root notes in heavier styles.

Related tuners: bass tuner (E A D G) · Drop C bass · Drop D guitar tuner · all-tunings tuner · metronome · play songs

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