Free Online Guitar Tuner

Tune your guitar quickly with a simple microphone-based tuner. Choose standard tuning, Drop D, DADGAD, Open G, Open D, half step down, and more.

Microphone off
—
Tap Start and pluck a string
Waiting for microphone
Flat In tune Sharp
Pluck one string at a time. Left means tune up. Right means tune down.

How to use this tuner

  1. Tap Start listening.
  2. Allow microphone access.
  3. Pluck one string at a time.
  4. If the tuner says flat, tighten the string.
  5. If the tuner says sharp, loosen the string.
  6. Stop when the meter is green and centered.

Free Online Guitar Tuner notes

This tuning uses the notes: E A D G B E, from the lowest thick string to the highest thin string.

This tuner analyzes pitch locally in your browser. Your microphone audio is not recorded, saved, or uploaded.

Other common tunings

Drop D Guitar Tuner DADGAD Guitar Tuner Open G Guitar Tuner Open D Guitar Tuner Half Step Down Tuner Whole Step Down Tuner 432 Hz Guitar Tuner 528 Hz Guitar Tuner

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All guitar tunings

Standard — E A D G B E 432 Hz Standard — E A D G B E 528 Hz Standard (A=444 Hz) — E A D G B E Half Step Down — Eb Ab Db Gb Bb Eb Whole Step Down — D G C F A D Drop D — D A D G B E Double Drop D — D A D G B D Drop C — C G C F A D DADGAD — D A D G A D Open G — D G D G B D Open D — D A D F# A D Open E — E B E G# B E Open C — C G C G C E