A chromatic tuner that listens through your microphone — note name, cents off pitch, and a moving needle. Open it from Tools; no band context required.
Click the microphone button to start; the browser will ask for permission the first time. On some phones you may need to tap anywhere on the page once, then press the microphone again. While listening, the status line shows Listening…; click the button again to stop.
Play one clear note at a time in a quiet room. The large letter is the detected note; cents show how sharp (+) or flat (−) you are, with In tune at zero. The needle slides left or right toward the centre line, and the frequency in Hz appears below the meter. Note colour shifts toward green as you get closer to pitch.
Open the gear icon for settings: reference frequency for A4 (400–500 Hz, default 440), instrument preset (guitar, bass, ukulele, and others — or Tuner for all notes), and sharp or flat notation. Changes save to your account automatically.
Close with the X or by clicking outside the card; that stops the microphone and returns to the previous page.
Permission denied — allow the microphone in browser or device settings, then tap the mic button again.
Microphone in use — close other apps using the mic, stop the tuner, wait a moment, and retry.
Wrong or jumping notes — play louder and longer, reduce background noise, and pick the right instrument preset so only expected strings are shown.
