Studio

Tuner

Guitar, bass, ukulele and voice. Play a note near the mic and the needle tells you whether to go up or down.

Studio · No. 1

Tuning meter

La₄

— Hz— cents

Turn on the mic to start

The string is picked for you; tap one to lock it. ♪ plays its reference note.

Level

Sound is analyzed on your device; nothing is recorded or sent.

Tuning

A4 calibration

From 415 to 466 Hz. Almost everything tunes to 440; some orchestras use 442, and baroque music 415.

Names

Accidentals

♯ ♭

Reference tone

Tune by ear: play the note and adjust until the beating stops.

Press Turn on mic and accept your browser’s permission prompt.
Pick your instrument and tuning. Play one string at a time and let it ring.
If the needle leans left, the note is flat: tighten the string. If it leans right, it’s sharp: loosen it.
When the needle sits in the center (±5 cents) the star lights up and the string is marked as in tune.

Always tune up to the note: if you overshoot, loosen a little and come back up. The string holds its pitch better.
Pluck gently and away from other strings: a hard attack pushes the note a few cents sharp at first.
On bass, hold your phone close to the body of the instrument or the amp: low notes reach the mic with less energy.
In Voice mode you’ll see which voice types your note falls in and the range you’ve sung today.