Drop D Tuning Online Tuner
Get to D A D G B E with just your microphone. Only one string moves — pluck the low E and the tuner picks it out automatically, guides it down a whole step to D, and plays the target pitch from the peg if you’d rather drop by ear.
Tap a peg to hear its note and start tuning — the browser will ask for mic access once. Sound is analyzed on your device, never uploaded.
How to Tune to Drop D
One string down a whole step — the fastest retune in guitar.
Start the Mic
Press the button and allow microphone access. The pegs show D A D G B E — the D2 peg is the only one that differs from standard.
Drop the Sixth String
Pluck the low E and loosen it slowly. The tuner auto-detects the string and counts down toward D2 — or tap the peg to hear the target D and match it by ear.
Sweep the Other Five
Pluck A, D, G, B, and high E once each to confirm they didn't drift while you cranked. When all six pegs show green checks, you're in Drop D.
Built for a One-String Retune
Auto-detected pegs, worded directions, and a reference D on tap.
Picks Out the String That Drops
Hit the sixth string and the tuner knows you're headed for D2, not E2 — the pegs auto-detect, so you don't have to select anything before you start loosening.
Says Loosen, Shows How Far
A whole-step drop is a big move for a needle. The readout spells out the direction in words and counts you down in cents until the low D lands.
One Check for the Drop, Five to Confirm
The low D gets its green check first; a quick pass over the other five pegs confirms nothing drifted while you were cranking the sixth.
A Reference D on Every Peg
Tap the D2 peg and hear exactly where the low string should end up — matching a droning reference is often the fastest way down a whole step.
Mic In, Nothing Out
Pitch analysis happens on your device and each audio frame is discarded the instant it's measured. No recording, no upload, no account.
Drop D on Any Device
Phone at practice, laptop in the studio, tablet on the couch — the tuner runs in every modern browser on iOS, Android, and desktop.
Your Riffs Stay in the Room
Everything the microphone hears is measured on your own device and immediately discarded — no audio ever leaves your browser, and no server ever hears a note. Press Stop and the mic is released on the spot.
No Recording
Each frame is measured, then gone
No Upload
Pitch detection runs locally
You're in Control
Stop cuts mic access instantly
Every Reason Players Drop the D
From the heaviest chug to the gentlest fingerstyle drone.
Riff Writing
The low D turns single-finger shapes into full power chords — riffs come faster
Rock & Metal Sets
Retune between songs in seconds when the setlist mixes standard and Drop D
Fingerstyle Arrangements
A droning low D under melodies is a fingerstyle staple, not just a metal trick
Tracking Day
Confirm the drop right before the red light — a sharp low D ruins every chug
First Alternate Tuning
One string moves and everything else stays put — the gentlest place to start
No Pedal Tuner Around
Any browser gets your sixth string to D when the clip-on stayed home
Drop D: One Peg Between You and a Bigger Guitar
Drop D tuning is D A D G B E — standard tuning with a single edit. The sixth string falls a whole step, from E2 at 82.4 Hz to D2 at 73.4 Hz, and the other five strings stay exactly where they were. That one move rearranges the bottom of the instrument: the three lowest open strings now spell D-A-D, a root, a fifth, and an octave — a ready-made power chord that rings the moment you strum it.
Getting there from standard, peg by peg
There is exactly one peg to touch: the sixth string’s. Turn it to loosen — the pitch falls — and keep plucking as you go so the tuner can track the descent from E2 to D2. Because the drop is a full two semitones, auto-detect may hesitate midway between the old note and the new one; tap the D2 peg to lock the target and the needle will stay pointed at D. A useful sanity check when you arrive: the open sixth string should now sound exactly one octave below your open fourth string. Total time, with a little practice: about fifteen seconds, which is why Drop D is the alternate tuning guitarists actually reach for mid-set.
What the low D unlocks
The famous payoff is the one-finger power chord: barre any fret across the bottom three strings and you get a movable root-fifth-octave stack. That makes fast, heavy riffing dramatically easier, which is why so much rock and metal lives here — but Drop D is not a genre badge. Fingerstyle and acoustic players prize the same low D as a drone, letting a bass note hum under open-position melodies in D and G. You also gain two frets of range below standard, and D chords in particular gain a floor: the open sixth string finally gives them the root bass note standard tuning denies them.
Tuning the drop cleanly with a microphone
A low D2 is the deepest note on the instrument, and deep strings are where mic tuners need the most care. Pluck the sixth string alone and let it ring — a firm attack over the 12th fret pushes more fundamental into the mic and steadies the reading. Approach the target from below if you overshoot: tuning up to pitch settles a string better than easing down onto it. After the drop, re-check the neighboring A string; big tension changes on one string can nudge the others slightly, and a ten-second sweep of all six pegs — each earning its green check — costs nothing.
Down by needle, down by ear
Every peg in the widget plays its reference tone, and the D2 reference is genuinely useful here: hold the tone, loosen the string, and listen for the beating between the two pitches to slow and vanish. It’s the way players dropped to D long before tuners existed, and the needle underneath grades your ear as you go. Curious what the string is doing on the way down? The pitch detector shows its frequency sliding in real time.
Beyond Drop D
When the low string goes back up, the standard-tuning guitar tuner walks all six strings home. If Drop D’s low end has you hooked, D standard takes the whole guitar down a step, DADGAD starts from the same dropped sixth string and keeps going, and half step down is the gentler whole-guitar detune every classic-rock fan eventually meets.
Dropped In? Track the Riff
The Notevibes Online Audio Editor records straight from the browser, strips room noise, finds your key and BPM, and exports MP3 or WAV — a natural next stop after the low D lands.
Free to try · No credit card required
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More free AI audio tools from Notevibes — same engine, no sign-up.
Guitar Tuner
Tune all six strings with your mic — auto string detection.
Drop C Tuning
Tune to C G C F A D — the heavy low-end workhorse.
D Standard Tuning
Tune every string a whole step down to D G C F A D.
DADGAD Tuning
Tune to D A D G A D — the modal Celtic sound.
Half Step Down Tuning
Tune to Eb standard — every string one semitone down.
Open D Tuning
Tune to D A D F# A D — open strings ring a D major.
Drop D Tuning FAQ
How do I tune my guitar to Drop D?
From standard tuning, loosen only the sixth (thickest) string a whole step, from E2 down to D2 — the other five strings don't move. Start the tuner, pluck the low string, and it will detect it automatically and count you down in cents until you land on D. The whole change takes about fifteen seconds.
What is Drop D tuning?
Drop D is D A D G B E — standard tuning with the lowest string dropped a whole step from E to D. It extends the guitar's range down two frets and puts a root-fifth-octave stack (D-A-D) on the bottom three open strings, so a one-finger barre plays a full power chord.
Do my chord shapes change in Drop D?
Only shapes that use the sixth string. Anything played on the top five strings is identical to standard. On the sixth string, everything sits two frets higher than you're used to — an F on the first fret becomes a G on the fifth, and power chords on the bottom three strings flatten into a single-finger barre.
Why is Drop D so popular in rock and metal?
Three reasons: the low D adds weight below standard tuning's floor, one-finger power chords make fast chugging riffs physically easier, and it's reachable in seconds mid-set. It's just as loved outside metal — fingerstyle and folk players use the low D as a drone under open-position melodies.
The tuner keeps labeling my low string E — what should I do?
Halfway through a whole-step drop the string sits between E2 and D2, so auto-detect can briefly guess the wrong target. Tap the D2 peg to lock it, and the needle will track your string all the way down to D no matter how far off it currently reads.
Is the Drop D tuner free, and is anything recorded?
Free, no account, no install — and nothing is recorded. The microphone signal is analyzed on your own device frame by frame and thrown away immediately; the mic turns off the moment you press Stop.