Live Pitch Detector – Sing & See Your Note Instantly

This free online pitch detector lets you sing or play an instrument and instantly see the exact musical note, frequency, and tuning accuracy. Ideal for singers, vocal coaches, and musicians who want to practice their pitch in real time.

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-- Hz
-- cents
center = in tune
Status: idle
A4 = 440 Hz (configurable)
How it works: Voice Note uses your browser microphone and a pitch-detection algorithm to calculate the sound frequency, match it to the nearest musical note, and show how sharp or flat you are in real time.