Free Online Guitar Tuner for Standard and Shifted Tunings
Tune your 6-string guitar with clean reference pitches on Protuningtool.com. Start with standard E A D G B E, shift the tuning up or down, hear each string one at a time, or play the full set in order before practice.
Use this guitar tuner to hear E2, A2, D3, G3, B3, and E4 reference pitches for a standard 6-string guitar.
Best Way to Use This Tuner
Tune first, then move straight into chords, scales, and practice drills while your guitar is still ready to go.
Guitar Tuner
Click any string to hear its reference pitch. Click the same string again to stop. Use Tuning Shift for half-step and whole-step changes, or use Play All Strings to hear the full tuning sequence.
6-String Guitar Reference
Use this tuner for everyday guitar setup, warmups, chord work, scale practice, and song prep. Tuning before you play saves time and makes everything else sound better.
Helpful Guitar Tools
Once your guitar is in tune, keep the momentum going with tools that fit naturally into the same practice session.
Guitar Tuner FAQ
Quick answers for using this guitar tuner effectively.
What is standard tuning for a 6-string guitar?
Standard tuning is E2, A2, D3, G3, B3, E4, moving from the lowest-pitched string to the highest-pitched string.
How do I use this online guitar tuner?
Click a string button to hear that pitch. Match your guitar string to the reference sound. Click the same button again to stop, or use the Stop button to silence everything.
What does Tuning Shift do?
Tuning Shift moves all the reference pitches together. That helps if you want to tune down a half step, down a whole step, up a half step, or up a whole step.
What is Play All Strings for?
Play All Strings gives you the full sequence of string pitches one after another. It is useful for checking the whole guitar quickly before you start playing.
Keep Going After You Tune
A tuned guitar is the starting point, not the finish line. Jump into chord charts, scale finding, and guitar practice drills while your instrument is already dialed in.
