Chromatic Tuner
Use your microphone to see the current note and how sharp or flat it is.
Use Choose input to allow mic access and show connected devices.
Higher sensitivity holds quiet notes longer but can react more to room noise.
Audio stays in this browser. The tuner works best with one sustained note at a time.
About this tool
The Chromatic Tuner listens through your selected microphone and shows the nearest note, octave, frequency, and cents sharp or flat.
It is useful for guitar, bass, ukulele, violin, voice, synths, and any single-note instrument because it does not require choosing a specific tuning first.
How to use it
Press Start tuner, allow microphone access, then play one sustained note. Move the pitch until the meter centers and the display says in tune.
Stable readings
The tuner smooths recent pitch readings and ignores unclear input, so short bursts of room noise do not yank the note display around.