Guitar Tuner - Simple Tuner

Your next song starts in tune. Guitar Tuner gives each EADGBE string a clear pitch check, with a tuning needle, note name and frequency reading. Its pitch tracker follows a sustained plucked note through some background noise, so you can make precise adjustments without chasing every stray sound.

Standard EADGBE tuning
Use Guitar Tuner for the familiar E, A, D, G, B and high E strings. The instrument layout keeps reference sounds close at hand, whether you are preparing for a lesson, warming up at home, or checking your instrument between songs.

- See the detected note, octave and frequency.
- Follow visual feedback for sharp or flat pitch.
- Tap a string button to hear its reference sound.
- Work through one string at a time at your own pace.

Precision you can see
Guitar Tuner shows the note, octave and frequency in hertz. Its cent-based needle helps you move from “almost there” to in tune with small, accurate adjustments. When the sound is too uncertain, the detector waits for a clearer note instead of guessing. Get the best of both approaches: follow the needle or tap a recorded reference and tune by ear.

Chromatic mode and reference pitch
Switch to chromatic mode when you want to follow notes beyond the standard strings. Guitar Tuner lets you set the A4 reference from 430 to 450 Hz, including 432, 440 and 442 Hz, for your pitch-detection display. Recorded string sounds are fixed references and do not transpose with this setting.

Tune by sight or by ear
Compare your string with its reference sound, then use the needle to check your adjustment. This gives new players a straightforward way to connect what they hear with the note shown on screen.

Before you begin
Allow microphone access and play one sustained note at a time. For your most accurate reading, let one string ring clearly near the microphone. If nearby noise drowns out your guitar, move closer or find a quieter spot. For an electric guitar, make sure its sound is audible to your phone’s microphone. Open Guitar Tuner for a focused check before practice.

Built on tuner experience
Our tuner apps have helped millions of users. Guitar Tuner brings that experience to a focused six-string tuning check.