Online Guitar Tuner - Chromatic Tuning Precision | Full Partituras Studio

Free online chromatic tuner for guitar, bass, and other instruments. High-precision pitch detection via microphone.

Real-Time Chromatic Instrument Tuner

Tune acoustic guitars, electric guitars, bass, ukuleles, and orchestral instruments directly in your browser. The tuner uses your microphone with zero software installations or server audio transmission.

Autocorrelation Pitch Detection Engine

Incoming microphone audio streams are analyzed using time-domain autocorrelation with parabolic peak interpolation:

  • Fundamental Period Calculation: The algorithm measures the exact period ($T_0$) of vibrating strings while filtering background noise.
  • Cents-Level Accuracy: Calculates pitch deviation within 1 cent relative to standard $A_4 = 440\text{ Hz}$ concert pitch (adjustable from 430 Hz to 450 Hz).
  • Target String Guides: Includes visual tuning guides for standard 6-string guitar ($E_2, A_2, D_3, G_3, B_3, E_4$), bass, and custom alternate tunings.

How to tune your guitar online with the Full Partituras Studio Chromatic Tuner

  1. Click "Start Listening" and allow browser microphone access when prompted.
  2. Pluck any open string on your guitar, bass, or ukulele close to your microphone.
  3. Observe the detected pitch note, frequency in Hertz, and real-time cent deviation meter.
  4. Adjust your tuning pegs until the needle aligns with the center 0-cent target in the green in-tune zone.