Online Tuner
One accurate chromatic tuner, tailored to your instrument. Each page below opens with the tuner ready to listen, plus the exact target notes, reference tones and the quirks worth knowing — reentrant ukulele strings, bass octave jumps, mandolin pairs.
Guitar tuner
Standard E–A–D–G–B–E by microphone, with cents precision — acoustic or electric.
Start tuning →Bass tuner
4-string and 5-string bass, down to the low B — with the octave display that low notes need.
Start tuning →Ukulele tuner
GCEA for soprano, concert and tenor — plus baritone DGBE — with reentrant-G guidance.
Start tuning →Violin tuner
G–D–A–E in fifths, precise enough for fine tuners — plus a cello reference for the low end.
Start tuning →Viola tuner
C–G–D–A in fifths — sizing in inches, the wolf-tone false alarm, and the wound C string.
Start tuning →Cello tuner
C–G–D–A in fifths, an octave below viola — with endpin stability and the wolf-tone false alarm explained.
Start tuning →Double bass tuner
E–A–D–G in fourths — identical to electric bass — with geared-tuner mechanics, the C extension and solo tuning explained.
Start tuning →Mandolin tuner
Four double courses, G–D–A–E — tune each pair until it locks into one clean note.
Start tuning →Banjo tuner
Open G (gDGBD) by microphone, including the short high-drone 5th string — free, no app.
Start tuning →12-string tuner
All six courses by microphone — octave pairs below, unisons on top, E standard or E♭.
Start tuning →7-string guitar tuner
B standard and Drop A by microphone — with the low-B gauge and scale-length problem explained.
Start tuning →8-string guitar tuner
F♯ standard and Drop E for all eight strings — and why the low F♯ is the hardest string on any guitar.
Start tuning →Baritone guitar tuner
B, A and C standard by microphone — with the scale-length and gauge logic a detuned guitar can’t copy.
Start tuning →Harp tuner
Note maps for 7, 16 and 19-string lyres, lap harps and lever harps.
Start tuning →Drum tuner
Lug-by-lug matching for toms, snare and kick — the fix for a drum that will not ring.
Start tuning →Marimba tuner
Check every bar against concert pitch — and know which ones have really drifted.
Start tuning →Oud tuner
Arabic C–F–A–D–G–C and Turkish C♯–F♯–B–E–A–D, with frequencies for every course.
Start tuning →Voice tuner
Sing and see the note — vocal range, pitch accuracy, and what-note-is-this.
Start tuning →Flute tuner
Set the headjoint at A=440, then check your octaves — and the C♯ everyone fights.
Start tuning →Oboe tuner
No barrel, no slide — pitch lives in the reed. The crow test, the two octave keys, and why the orchestra tunes to you.
Start tuning →Piano tuner
Check any key against concert pitch — how far your piano has drifted, note by note.
Start tuning →Tongue drum tuner
Check every tongue against its scale — C major, D Akebono, pentatonic or unlabeled.
Start tuning →Dulcimer tuner
Mountain dulcimer in DAD, DAA, DAC and DAG — by microphone, free, no app.
Start tuning →Kalimba tuner
Note maps for 21, 17, 10, 8 and 7-key kalimbas, with octave display for slipped tines.
Start tuning →Guzheng tuner
Complete D-pentatonic note map for all 21 strings, by microphone — plus how bridge position sets the key.
Start tuning →Erhu tuner
Inner D and outer A by microphone, at A=440 or 442 — plus the qianjin, damper and snakeskin factors competitors leave out.
Start tuning →Accordion tuner
Check treble keys and Stradella bass buttons by microphone — and read deliberate musette tremolo correctly.
Start tuning →Harmonica tuner
Check blow and draw reeds, practise bends against real targets — and learn why a new harp reads sharp.
Start tuning →Trombone tuner
Check slide positions and the open B♭ harmonic series by microphone — including which partials run naturally out of tune.
Start tuning →Trumpet tuner
Set the main tuning slide against concert B♭, then check the valve combinations that run sharp — 1-2-3 most of all.
Start tuning →Clarinet tuner
Set the barrel against concert B♭, then check the twelfth-interval break between chalumeau and clarion registers.
Start tuning →Saxophone tuner
Set the mouthpiece against concert B♭, then check that the octave key jumps a clean octave — alto, tenor, soprano and baritone.
Start tuning →Recorder tuner
One joint, one note per size — soprano, alto, tenor and bass — and why a factory-fresh recorder reads sharp at A=440.
Start tuning →Charango tuner
Five courses in temple natural, including the third-course octave pair — and why the lowest string sits in the middle.
Start tuning →Cavaquinho tuner
Brazilian D–G–B–D with the octave named — plus the Portuguese reentrant tunings where the 3rd string is the lowest.
Start tuning →Brazilian 7-string guitar tuner
The choro tuning with its low C2, plus the B and A alternatives — and how it differs from the metal 7-string.
Start tuning →Guitarrón tuner
The mariachi bass tuning with its re-entrant A2 named octave by octave — and the octave-plucking technique it exists for.
Start tuning →Mexican vihuela tuner
Five strings, A–D–G an octave up — and why the 3rd string is the highest note on the instrument.
Start tuning →Requinto tuner
The trío romántico tuning, a fourth above a guitar — and the tension arithmetic behind the EADGBE mistake.
Start tuning →Cuatro venezolano tuner
The cambur pintón tuning with its dropped B named octave by octave — and why two charts number the strings in opposite directions.
Start tuning →Cuban tres tuner
Three courses in C major, the octave-pair question answered honestly, and the D-major transposition.
Start tuning →Tuba tuner
Main-slide setup for BB♭, CC, E♭ and F tubas, with a dial that reads the pedal register.
Start tuning →French horn tuner
The B♭-then-F tuning order for a double horn, and the fifth between what you read and what you sound.
Start tuning →Euphonium tuner
Concert-pitch bass clef versus transposing treble clef — and the main slide underneath both.
Start tuning →Bassoon tuner
Why the bocal is not a tuning slide, and how to read which of reed, embouchure or bocal is at fault.
Start tuning →Piccolo tuner
The written octave, head-joint moves at piccolo scale, and the cork position nobody checks.
Start tuning →Bagpipe tuner
Set the reference to your own chanter’s A, then tune three drones to it.
Start tuning →Lap steel tuner
C6 in full plus the open tunings a lap steel gets restrung for, octave by octave.
Start tuning →Resonator / Dobro tuner
The squareneck G–B–D–G–B–D and the one string that differs from guitar open G.
Start tuning →Handpan tuner
All nine D Kurd notes in zigzag order — and an honest answer about retuning it yourself.
Start tuning →Guitalele tuner
A ukulele on top and a guitar underneath — with the fourth that separates it from a guitar chart.
Start tuning →Bass ukulele tuner
Bass pitches on a 20-inch scale, and how to stop the display naming the octave above.
Start tuning →Greek bouzouki tuner
Tetrachordo C–F–A–D with its two octave courses, plus trichordo, plus the Irish split.
Start tuning →Irish bouzouki tuner
GDAD in unison courses, where it came from, and the GDAE fifths alternative.
Start tuning →Autoharp tuner
A method for 36 strings, the damping problem, and where the chromatic range actually begins.
Start tuning →Balalaika tuner
Two strings on one E plus the A melody string — and why the beating matters more than the needle.
Start tuning →Tin whistle tuner
The tuning slide, the warm-whistle climb, and the second octave that is really about breath.
Start tuning →Ocarina tuner
Measuring the breath curve — the test that says whether it is the ocarina or you.
Start tuning →Cigar box guitar tuner
Root–fifth–octave GDG, and how to tell which octave your build was made for.
Start tuning →
Any other instrument
Piano, harp, cello, saz, flute, voice — if it makes a pitch, the full-screen chromatic tunerreads it. It names whatever note it hears with a cents readout, supports reference pitches other than A 440, nine historical temperaments, and transposition for instruments in B♭, E♭ and F. And when you want to sharpen the ear behind the needle, try the pitch ear trainer or browse the tuning guides. Guitarists working outside standard have dedicated preset pages too — Drop D, half step down, Open G, DADGAD and the rest are under guitar tunings.
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