Instrument Tuner
Tune your instrument with precision using your microphone
Frequency: — Hz
| Note | Frequency (Hz) |
|---|---|
| C4 | 261.63 |
| D4 | 293.66 |
| E4 | 329.63 |
| F4 | 349.23 |
| G4 | 392.00 |
| A4 | 440.00 |
| B4 | 493.88 |
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Como Usar
Abra a Ferramenta
Sem configuração necessária — a ferramenta carrega instantaneamente no seu navegador.
Interaja e Explore
Use seu mouse, teclado ou toque para interagir em tempo real.
Use a Qualquer Hora, em Qualquer Lugar
Funciona em desktop e celular — pratique ou crie em qualquer lugar.
Por Que Usar Esta Ferramenta
100% Gratuito
Sem custos ocultos, sem planos premium — todos os recursos são gratuitos.
Sem Instalação
Funciona inteiramente no seu navegador. Nenhum software para baixar ou instalar.
Privado e Seguro
Seus dados nunca saem do seu dispositivo. Nada é enviado a nenhum servidor.
Funciona no Celular
Totalmente responsivo — use no seu celular, tablet ou desktop.
How Digital Instrument Tuners Work
Key Takeaways
- Chromatic tuners detect pitch by analyzing audio frequency using Fast Fourier Transform (FFT) algorithms.
- Standard concert pitch is A4 = 440 Hz, though some orchestras tune slightly higher (441–443 Hz).
- Browser-based tuners use the Web Audio API to access your microphone and process audio in real time.
A digital instrument tuner listens to the sound your instrument produces, identifies the closest musical note, and shows how sharp or flat you are. Modern browser-based tuners leverage the Web Audio API to perform real-time pitch detection directly on your device, with no software installation required.
±1 cent
Tuning accuracy
Common Use Cases
Guitar & Bass Tuning
Quickly tune all six strings to standard (EADGBE) or alternate tunings like Drop D, Open G, or DADGAD before practice or performance.
Orchestral Warm-Up
Tune woodwind, brass, and string instruments to concert pitch A440 during ensemble warm-up without carrying a separate tuning device.
Ukulele & Mandolin
Tune less common stringed instruments accurately using a chromatic tuner that detects any pitch rather than only preset string notes.
Vocal Pitch Training
Singers can use a visual tuner as feedback to practice hitting and sustaining accurate pitches during vocal exercises.
Tips for Accurate Tuning
Tune in a quiet environment — background noise can confuse pitch detection and produce unreliable readings.
Play a single note clearly and let it sustain. Avoid strumming multiple strings simultaneously.
Tune up to pitch rather than down. If sharp, loosen below the target and tune upward for better stability.
Allow your microphone a moment to initialize. Some browsers require you to grant permission before the tuner can start.
This tuner processes all audio directly in your browser using the Web Audio API. No audio data is recorded, stored, or sent to any server. Microphone access is used solely for real-time pitch detection.