Piano Tuner

Piano Tuner AI is a precision piano-tuning tool built for pianists, technicians, and anyone who wants clear, real-time tuning feedback.
Use your phone’s microphone to analyze individual piano notes, track pitch in cents, and tune confidently with a responsive visual tuner designed around real piano behavior in Piano Tuner.
Key features:
- Real-time pitch detection with clear flat/sharp cent feedback
- Multi-string tuning support for unisons with 1, 2, or 3 strings
- Piano keyboard note selection with automatic key-selection modes
- Adjustable tuning scales: +/-100, +/-50, +/-25, +/-10 and +/-5 cents
- Optical strobe display driven by live pitch deviation
- Per-string tuning scales and live component tracking
- Inharmonicity measurement workflow for building a piano-specific tuning curve
- Stored inharmonicity partial data, offsets, amplitudes, confidence, and IH coefficient
- Pitch Raise feature for old instruments with lack of care :(
- Custom piano profiles with manufacturer, model, serial number, range, temperament, tuning style, and concert pitch
- Support for Equal Temperament and additional temperament detail charts
- Configurable partial selection for low-note tuning, with automatic selection from available harmonics
- Pitch-curve recording and review for measured notes
- (future plan)Optional Bluetooth connection to a compatible tuner motor device
- (future plan)Optional motor-assist workflow with controlled probe and correction steps
- Google sign-in and Firebase cloud synchronization for supported piano profiles and tuning data
- Instagram and Facebook login feature
- Local storage for reliable offline work

Piano Tuner AI processes live microphone audio on your device for tuning analysis. It does not upload microphone recordings.
Whether you are checking a single note, tuning a unison, recording inharmonicity data, or working with a compatible Bluetooth motor assistant, Piano Tuner AI keeps the tuning workflow focused, visual, and precise.