Pitch Diagram: Vocal Tuner

Audio graphs & singing tools

Pitch Diagram gives you real-time visual feedback on every note you sing or play. See your pitch as a smooth, scrolling graph, spot intonation issues instantly, and track your accuracy down to the cent.

Whether you're refining vibrato, practicing scales, breaking down melodies, or tuning your instrument, Pitch Diagram is a mirror for your sound.

6 Tools for Musicians

• Pitch Diagram (Mono)
Real-time pitch graph for single-note music. See every note as a continuous trace.
Record you session and export to MIDI.

• Pitch Spectrogram (Poly)
Detect multiple notes at once. Reveal chords, harmonies, and harmonic overtones in any musical passage.

• Tuner
Cent-accurate chromatic tuner showing the closest note, cents offset, and exact frequency.

• Intonation Tracker
See your intonation relative to the nearest note, measured in cents. Ideal for focused practice.

• Spectrum Analyzer
Full frequency spectrum visualization with logarithmic scale.

• Tone Generator
Generate reference tones by note or frequency. Sine, triangle, square, and sawtooth waveforms.


• Customize Your View
- Switch between grid lines and piano roll background
- Adjust visible octave range to match your voice or instrument
- Toggle waveform strip for additional context
- Transpose notes to any key
- Set custom reference tuning
- Switch between letter and solfege note labels

• Free to Try
Use any tool free for 1-minute sessions. Subscribe for uninterrupted access to everything.

Built by a musician, for musicians. Feedback welcome, use the in-app Feedback button or email us.