By Ear
Click any string button above to hear the correct reference tone. Play the matching string on your guitar and adjust the tuning peg until both sounds match. Work through each string from low E to high e.
Guitar Tuner
Tune your guitar with reference tones or use your microphone for real-time pitch detection. Click a string to hear it, or start the tuner for hands-free tuning.
--
--- Hz
-- cents
Waiting
-50
-25
0
+25
+50
Click a string to play its reference tone
Note: Laptop and phone speakers may not accurately reproduce the lower strings (E2 and A2). Use headphones or external speakers for best results.
How to Use
With Microphone
Click "Start Tuner" to enable microphone access. Play an open string on your guitar and watch the display. The gauge shows whether you are flat, sharp, or in tune. Adjust the tuning peg until the indicator is centered and the border turns green.