Tuner
Microphone access denied
How does it work?
This chromatic tuner uses your device's microphone to detect the pitch of the note you play. It identifies the closest note in the chromatic scale and shows how many cents sharp or flat you are. It works with any instrument: guitar, bass, ukulele, violin, wind instruments and more.
Reading the display
The note name and octave are shown above the dial. The needle indicates your tuning accuracy: center means perfectly in tune. The color changes from green (in tune, within 10 cents) to orange (slightly off, 10 to 30 cents) to red (more than 30 cents off). The cents value below the dial gives you the exact deviation.
Tips for accurate tuning
Play one note at a time and let it ring clearly. Tune in a quiet environment for best results. If the needle jumps around, try moving closer to the microphone. For string instruments, pluck the string firmly and tune while the note is still sustaining.
You can fine-tune the detection using the audio knobs in the top right corner of the page. Gate sets the noise gate threshold: raise it to ignore background noise. Clarity sets the minimum confidence required to detect a note: increase it if the tuner picks up unwanted harmonics. Gain adjusts the input volume: boost it if your signal is too weak, or lower it if it clips.