Stackapella Open the app

For singing · calm on vibrato · your pitch over time

Voice tuner

Sing one note and see which note it is, how many cents sharp or flat, and a line of your pitch over time, so you see where it drifts. It smooths out vibrato, so a held note reads steadily.

How to use it

  1. Tap Listen and allow the microphone. Sing an easy "ah" on one note and hold it for a few seconds.
  2. Watch the line as well as the needle: it shows a note that sags at the end of a breath, or starts under the note and slides up. In Settings, set how close counts as In tune.

Also: Guitar tuner Bass tuner Ukulele tuner Violin tuner Banjo tuner Mandolin tuner Cello tuner Viola tuner

What a voice tuner shows

The big letter is the note you're on and the small number its octave: middle C is C4. The cents say how far you are from that note, minus for flat and plus for sharp; a cent is a hundredth of a semitone. The line draws your pitch over the last few seconds.

Practising with a voice tuner

Sing the note first, decide whether you think you're flat or sharp, and only then look. That way the tuner trains your ear instead of standing in for it. Start on comfortable notes in the middle of your voice, and use it for single notes: a choir singing a chord in tune leans toward pure intervals, which a tuner reads as slightly off.

A voice tuner is not autotune

This shows your pitch so you can learn to correct it yourself. It doesn't change or record your voice. Autotune is a different kind of tool, one that changes the pitch of a voice, live or in a recording.

Free tools by Stackapella

You can see your pitch. Now learn to land it by ear.

Stackapella teaches you to sing harmony one part at a time, right in your browser.

Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up. Stackapella recording the alto part of Amazing Grace: each note is a bar with its name, and the one being sung says A little low, go up.
  • A guide sings your partHear your line over the others, slow it down, then take your turn.
  • Your notes light upEach note shows where you landed, and a hint when to go up or down.
  • Record every part yourselfStack your takes in time until you're the whole choir.
Try Bullseye, free Open the app How Stackapella works

Questions

What is a voice tuner?

A tuner made for singing: it names the note you sing, shows how far sharp or flat you are, and smooths out vibrato so a held note reads steadily.

Is this autotune?

No. It shows your pitch so you can hear and correct it yourself. Nothing changes your voice, and nothing is recorded.

Why does the needle wobble when I sing?

Vibrato and the small natural wavers of a voice. Voice mode smooths them out; a steady line around the note is what to aim for.

How close counts as in tune?

Within 10 cents, held for half a second, in Voice mode. You can set that from 2 to 15 cents in Settings, tighter as you improve.

Can it tell me my vocal range?

Not this one: try the vocal range test, which finds your lowest and highest notes and the voice type that fits.

Is my voice recorded?

No. The microphone opens only when you tap Listen, your pitch is worked out on this device, and nothing is recorded, kept or sent.

More free tools

No account, no ads. Each one keeps working offline once you've opened it.

See all 17 tools
Tuning an instrument? The tuner does those tooTuner · Sharp or flat, voice or instrument