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 — viola tuning covered too.
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 →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 →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 →
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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