Guitar tuner

Play a string and the tuner shows which peg to turn and which way.

How to tune your guitar

Step 1
Allow the mic
Press Start tuner and let the browser use your microphone. Nothing is recorded or sent anywhere.
Step 2
Play one string
Pluck a single open string and let it ring. The tuner finds the string and lights up its peg.
Step 3
Turn the peg
Tune up means tighten, tune down means loosen. Stop when the marker sits in the middle and the peg turns green.

Notes from the thickest string to the thinnest.