Free Online Pitch Detector
See your voice or instrument pitch in real time, or analyze an MP3/WAV recording. Track musical notes, Hz, octave, cents, and pitch over time in your browser.
Browser-based · No download requiredHow it works
Allow microphone access
Speak or sing into your microphone
Watch your pitch displayed in real-time (Hz, note, octave)
Use the history graph to track changes over time
What's included
Real-Time
See your pitch update in real-time as you speak or sing. No recording needed.
Frequency & Note
Displays Hz frequency, nearest musical note, octave, and cents deviation.
History Graph
Visualize your pitch over time with a scrolling graph.
Who is this for?
Vocal Training
See your pitch in real-time while singing. Practice hitting notes accurately with visual feedback.
Instrument Tuning
Check the pitch of any instrument against a reference frequency and musical note.
Music Education
Teach pitch concepts with a visual tool that shows frequency, note name, and octave in real-time.
Real-Time Pitch Detection — See Your Voice Frequency
This pitch detector analyzes your voice in real-time and displays the fundamental frequency (in Hz), the closest musical note, and the octave. It uses autocorrelation-based pitch detection for accuracy across the full vocal range. Whether you are a singer checking your pitch, a music student learning intervals, or a voice actor working on character voices, this tool gives you instant visual feedback on your vocal pitch — free to use and private.
Find the Pitch of a Voice, Note, or MP3 Recording
Use the live microphone mode to check the note you are singing or playing right now, or upload an MP3/WAV recording to inspect pitch over time. The detector shows the nearest musical note, frequency in Hz, octave, and cents sharp or flat, while the contour makes slides and drift easier to see. For the clearest result, use one voice or one instrument at a time; chords, full mixes, heavy reverb, and background noise can confuse any pitch finder. Your microphone and audio file are analyzed in your browser, not uploaded for processing.
Frequently asked questions
What is voice pitch?
Voice pitch is the fundamental frequency of your voice, measured in Hertz (Hz). Average male voice pitch is 85-180 Hz, and average female voice pitch is 165-255 Hz. Pitch detection identifies the dominant frequency in your voice.
Can I use this for singing?
Yes! The pitch detector shows your current note and how far off you are (in cents), making it useful for vocal practice and pitch training.
Does it work with instruments?
Yes. The pitch detector works with any monophonic sound source — voice, guitar, flute, etc.
How accurate is the pitch detection?
Can I save my pitch data?
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