Pitch Detector: What Note Am I Singing?
Sing or hum one steady note to see its chromatic note, octave, frequency and whether you are flat or sharp.
Find the note in three steps
The detector runs in your browser. It listens only after you press Start.
- 01
Start the detector
Press Start detector and allow microphone access for this site.
- 02
Sing one steady note
Use a comfortable vowel or hum and hold the pitch without forcing your voice.
- 03
Read the result
See the nearest note and octave, frequency in Hz, signed cents, and flat or sharp direction.
What the pitch reading means
The detector estimates your fundamental pitch, maps it to the nearest note in A4=440 Hz equal temperament, and shows your distance from that note.
Note + octave
A result such as C♯4 names the chromatic note and its octave.
Signed cents
Negative is flat, positive is sharp, and the green zone is close to the note.
Frequency in Hz
The frequency is the measured vibration rate of the detected pitch.
Private by design
Pitch analysis happens on your device through the Web Audio API. Singers AI does not record, upload, store or transcribe your voice. Stop the detector or leave the page to release the microphone.
A measurement aid, not a verdict
Background noise, microphone quality, room sound, breathiness and strong harmonics can affect a reading. Use a comfortable steady note and treat the result as an estimate, not a judgment of your voice or vocal health.
Take the Vocal Tuner into your practice
Use the full Singers AI Vocal Tuner for reference tones and connected singing-practice tools on your phone.
Pitch detector questions
What note am I singing?
Press Start detector, allow microphone access, and sing or hum one steady note. The large display shows the nearest chromatic note and octave, such as A3 or C♯4.
What is the difference between pitch and cents?
The note name identifies the nearest musical pitch. Cents show how far your measured pitch is from that note: negative is flat and positive is sharp.
Does this pitch detector work on a phone?
Yes. It works in recent mobile browsers that support microphone access and the Web Audio API. The page must use HTTPS and you must allow microphone permission.
Is my voice recorded or uploaded?
No. The detector processes microphone audio locally in your browser. It does not record, upload, store or transcribe your voice.
Is this the same as a vocal range test?
No. This tool identifies the note you are singing right now. The Vocal Range Test tracks your lowest and highest comfortable notes across a session.
Does the detector auto-tune or correct my voice?
No. It only estimates and displays pitch. It does not change your audio, rate your singing, or diagnose your voice.
More free singing tools
Each one runs in your browser. No signup needed.
- Vocal Range TestFind your repeatable lowest and highest notes and see the span between them.Check my vocal range
- Singing Pitch TestHear a reference note, sing it back, and see how closely you matched the pitch.Practise pitch matching
- Online Tanpura & Shruti BoxFor Indian vocal practice, choose your Sa and play a recorded Pa–Sa tanpura drone. Add the Sargam pitch meter when you want live note feedback.Start tanpura practice
- Vocal Warm-UpFollow a five-minute piano-led warm-up that adapts higher or lower to your comfortable starting note.Start a vocal warm-up