Online guitar tuner
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Watch: How to Tune Your Guitar
New to tuning? Watch this quick lesson from our beginner course to learn the basics in under two minutes.
Quick Tuning Tips
Start With Standard
Begin with EADGBE. Tune from the thickest string (low E) to the thinnest (high E).
Pick Technique
Use a pick or your thumb with a firm, even pluck. A clean tone helps the tuner lock onto the pitch faster.
Sharp vs Flat
If the needle is right of center, you are sharp. Loosen the peg slightly. If it is left of center, you are flat. Tighten up.
How to tune your guitar online
Press “Tap to tune” to start the tuner and allow microphone access when prompted. Pluck one string clearly and let it ring. The tuner displays the detected note and shows whether you are sharp or flat. Turn the tuning peg in small steps, then pluck again to recheck. When the indicator centers and the note matches, move to the next string. After tuning all strings, check them once more in reverse order to confirm stable tension.
Switch string counts and keep the right targets
Use the string selector to switch between 6 string, 7 string, and 12 string setups without leaving the page. The note list updates to the standard tuning for the instrument you chose, so you always know the target pitches before you play. If your guitar uses an alternate tuning, start from the closest preset and tune each string to your desired note. Save the setting in your browser for quick return next time you visit.
Get better accuracy and tune more consistently
Accurate tuning depends on a clean signal. Play close to your device, reduce background noise, and pluck with a steady attack. If the reading jumps, try a different string position or angle the microphone toward the sound hole. Guitars drift with temperature changes, humidity, and playing time, so a quick check before each session is wise. If you cannot use a microphone, use the reference tones to tune by ear when you need a backup.
Works for Acoustic and Electric Guitar
This browser-based tuner works with any guitar that produces sound your microphone can pick up. For acoustic guitars, hold your device near the sound hole for the clearest signal. For electric guitars, tune unplugged or with a clean tone at low volume. Distortion and effects add harmonics that can confuse pitch detection. The tuner reads the fundamental pitch the same way whether you play a steel-string acoustic, a nylon-string classical, or a solid-body electric.
111 tunings across 15 instruments, 27 for guitar alone
Use the instrument navigator above to switch between Guitar 6-String, 7-String, 12-String, Bass, Ukulele, Violin, Mandolin, Banjo, Cello, Viola, Fiddle, Balalaika, and Cavaquinho. Each instrument loads its own set of tunings you can select from the tuning picker. For guitar, that means 27 presets including Standard EADGBE, Drop D for heavier riffs and power chords, Open G for slide and blues, DADGAD for fingerstyle and Celtic folk, and Half Step Down used by Jimi Hendrix and Stevie Ray Vaughan. Bass players get Drop D, Drop A, and 5-string setups. Ukulele covers Low G, Slack Key, and Soprano in D. Banjo includes Open G, Open D, Double C, and Sawmill, all accessible in two taps. Pick your instrument, pick your tuning, and start tuning right away in the browser with no app download required.
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