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Online tuner and vocal pitch detector
Sing or play a note and the needle shows how close you are: the note name, its frequency in Hz and how many cents sharp or flat you are. Tap the piano to hear a reference note, then match it with your voice. Works for vocals, guitar and most instruments. Free, and nothing is recorded.
- 1. Press Start tuner and allow the microphone.
- 2. Sing or play one steady note. The big letter shows the nearest note, the needle shows how far off you are.
- 3. Aim for the green zone in the middle. Left means flat (too low), right means sharp (too high).
- 4. Tap a piano key or a guitar string to hear the target note and match it.
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How to read a tuner: notes, hertz and cents
The tuner listens through your microphone, finds the strongest pitch and shows the nearest note, its frequency in hertz and how far you are from it in cents. The reference is A4 = 440 Hz, the standard most instruments and backing tracks use; you can change it if your band tunes differently. One semitone is 100 cents, so -20 means you're a fifth of a semitone flat and +50 means you're halfway to the next note.
For instruments, tune each string or note until the needle settles in the middle. For singing, hold a steady note for a second or two: voices naturally move a few cents, so look for where the needle settles rather than chasing every wobble. The audio is analysed in your browser and never uploaded.
What note am I singing? Press start, sing one steady note and read the big letter: that is the nearest note, with the octave number beside it (C4 is middle C, about 262 Hz). The tool follows one voice or instrument at a time between roughly 60 and 1,500 Hz, which covers most singing and guitar. It does not pick notes out of a chord or a full mix, so it is not a transcription tool: to find the key of a finished track, play its notes one at a time or use a dedicated key-detection tool.
Is this the same as autotune? No. The tuner only shows you the pitch so you can correct it yourself; it never changes your audio. Pitch correction such as autotune is a separate effect applied in a recording tool.
Tips that work
- Use headphones when singing along to a track, so the tuner hears your voice and not the speakers
- Tune in a quiet room; fans and traffic hum can pull the reading
- Sing a slow scale and note which notes you drift on; that's where practice pays off
Common mistakes
- Judging pitch on short, fast notes; hold the note so the reading can settle
- Tuning a guitar to the open string while it's still ringing from the last strum
- Using a different reference than your band or backing track (for example 432 Hz versus 440 Hz)
Frequently asked questions
Is my microphone recorded or uploaded?
No. The audio is analysed inside your browser to find the pitch and is never recorded, stored or sent to Textlino.
Why doesn't the tuner react to my voice?
Allow microphone access, move closer to the mic and hold a steady note. Background noise, chords and very breathy singing make the pitch harder to detect.
What does 'cents' mean?
A cent is a hundredth of a semitone. Within about 5 cents of the note counts as in tune; most listeners won't hear a difference that small.
How do I find out what note I'm singing?
Press Start tuner, allow the microphone and hold one steady note for a second or two. The big letter is the nearest note and the number beside it is the octave, so A4 is the A above middle C. The tool also shows the frequency in Hz and how many cents sharp or flat you are.
Can it detect notes from a song or a chord?
No. The pitch detector follows one note at a time, from roughly 60 to 1,500 Hz, so it works for a single voice or instrument. Chords and full mixes contain several pitches at once and give unreliable readings.
What is A4 = 440 Hz?
It's the standard reference pitch: the A above middle C vibrates at 440 Hz. Some bands and orchestras tune to 432, 442 or 443 Hz, which you can set next to the start button.