A guitar tuner tells you whether each string is too high (sharp) or too low (flat), so you can bring it to the right pitch by ear. This one listens through your microphone and reads the note as you play.

Here’s how to tune your guitar with it, what standard tuning is, and a few tips for a reading that holds.

How to tune

Allow microphone access when your browser asks, then play one open string at a time. The tuner shows the note it hears and how far off it is. Turn the tuning peg until it reads in tune, then move to the next string. Standard tuning, from the lowest (thickest) string to the highest, is E A D G B E.

Why tune by ear with a mic

A microphone tuner reads the actual pitch coming off the string, so it catches small errors your ear can miss and shows you which way to turn the peg. You get an in-tune guitar without buying a clip-on tuner or a pedal.

Tips for a stable tuning

Tune in a quiet room so the tuner reads only your guitar.
Pluck with a steady, medium strength and let the note ring.
Finish by tightening up to the pitch rather than loosening down to it, which helps the string hold its tuning.
If a string is far off, get it close first, then fine-tune.

FAQ

What is standard guitar tuning? From the lowest string to the highest: E A D G B E.

Do I need to allow the microphone? Yes. The tuner reads each note from your guitar through the mic, and the sound is analyzed in your browser as you play.

Can I use it for other tunings? Tune each string to the note you want. The tuner shows the pitch it detects, so you can match any target note.