Online Guitar Tuner
Get and stay in tune with D’Addario’s quick, easy-to-use, accurate, 100% free online tuner.
Try Our Free Guitar Tuner Below
Get in tune fast with our highly accurate online tuner. Compatible with a wide range of instruments and tunings.
How to Use the Online Guitar Tuner
1. Pick a tuner style.
2. Choose your instrument and tuning from the menu.
3. Play one string at a time and check its pitch with the tuner.
4. Adjust the string as needed and repeat until your instrument is in tune.
D’Tools Online Guitar Tools
Get in tune, stay in time, and discover scales, chords, and fretboard inspiration, all in one place.
Online Metronome
Master your timing with our free metronome.
Scales
Learn scales, patterns, and fingerings in every style.
Chord Finder
Every chord you’ll ever need, all in one place.
Chords
Study chords and understand their construction.
Player Resources
How To Tune a Guitar
The Complete Guitar Tuning Guide: Standard & Alternate Tunings.
Drop Tuning Guide
The Best Strings for Alternate and Drop Tuning
How to Tune a 12-String Guitar
Tuning a 12-string guitar is an essential skill that helps you achieve its full, chorus-like sound.
Accessories That Go Great With D’Tools
Need a Physical Tuner?
