Pitch Detector
What is Pitch Detector ?
Free online Pitch Detector that supports real-time detection of note names, frequency, and cents deviation via microphone, and records pitch accuracy changes during singing or instrument playing with a pitch curve graph. Ideal for vocal pitch training, note recognition, instrument tuning, and music learning.
Free Online Pitch Detector
- Recording time：2026-10-23
- Is it free：
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(2026-09-01 - 2026-09-30)Website Latest Traffic Status
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Pitch Detector Core Features
Real-time microphone pitch detection and note recognition
Display frequency, cents deviation, and current pitch
Pitch-over-time curve graph recording
Vocal and instrument intonation practice support
Free to use in browser, no account registration required
Pitch Detector Subscription Plan
FAQ from Pitch Detector
What is the online pitch detector tool?
The online Pitch Detector is a free browser tool that recognizes note names, frequency, and cents deviation in real time via your microphone, and displays how your pitch changes over time with a pitch curve graph. It is ideal for vocal and instrument intonation practice.
Is Pitch Detector the same as a guitar tuner?
Not exactly. Guitar tuners are usually designed for tuning standard strings, while the online pitch detector recognizes a wider range of pitches and notes and displays a pitch curve, making it better suited for checking singing accuracy, identifying melody notes, and observing pitch changes.
Are the pitch detection readings accurate?
This tool is optimized for stable note reading in real practice scenarios, and also displays cents deviation and the pitch curve. Environmental noise, microphone quality, and singing stability can affect the results. We recommend using headphones and testing in a quiet environment.
Why does the last note still display after I stop singing?
The last detected note is retained after you stop singing so you can compare it with the target pitch, matching the common practice in vocal lessons or instrument practice. You can start a new detection to record a fresh pitch curve.
Do I need to register an account to use the online pitch detector?
No. Pitch Detector runs directly in browsers such as Chrome, Edge, Firefox, or Safari. Simply allow microphone access to start free pitch detection—no app installation or account creation required.
Can I use it to recognize notes from speakers or videos?
You can try, but loudspeaker playback may cause microphone interference or feedback. We recommend using headphones or directly playing or singing sounds with a clear fundamental frequency to improve the stability of online note recognition and pitch detection.
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