Electric Guitar Tuner
Tune an electric guitar unplugged with your microphone, or plug it into an audio interface. It starts in standard tuning, and half step down, drop D, drop C and lower tunings are in the menu.
- Free, no sign-up
- Mic or audio interface
- Drop & down tunings
- Private, on-device
Reference pitch (A4)
Hz
Lower it in noisy rooms
Press Start tuning, then play a string
0/6 tuned
Standard notes
A4 = 440 Hz| String | Note | Frequency |
|---|---|---|
| 6 | E2 | 82.41 Hz |
| 5 | A2 | 110.00 Hz |
| 4 | D3 | 146.83 Hz |
| 3 | G3 | 196.00 Hz |
| 2 | B3 | 246.94 Hz |
| 1 | E4 | 329.63 Hz |
Tuning without an amp
An unplugged electric guitar is quiet, but most phone and laptop mics still hear it clearly. Hold the guitar close to the microphone and pick firmly near the bridge.
For the clearest sound, plug into an audio interface and choose it as your browser’s microphone. Rock and metal players often use half step down, drop D or drop C.
Keyboard shortcuts
- Space Start or stop the microphone
- 1–9 Play a string’s reference note
- M Switch Auto / Manual mode
-
Start the tuner
Press Start tuning and allow access to the microphone. Hold your electric guitar 20–50 cm from the mic.
-
Play one string
Pluck one string and let it ring. Auto mode shows the closest string. To stay on one string, switch to Manual.
-
Adjust the tuning machine
If the needle is on the left, tighten the string to raise the pitch. If it is on the right, loosen it. Stop when the needle is in the middle and turns green.
Frequently asked questions
Can I tune an electric guitar without an amp?
Yes. Most microphones can hear unplugged strings if you hold the guitar close. For the best sound, connect the guitar to an audio interface and choose it as the browser’s input.
How do I use an audio interface with an online tuner?
Plug the guitar into the interface, allow microphone access, and choose the interface as the input in your browser’s site settings. The tuner switches off echo and noise filtering, so low notes come through clearly.
Why won’t my electric guitar stay in tune?
New strings stretch, a tremolo bridge may not come back to its starting point, and strings can catch in the nut slots. Stretch new strings gently, lubricate the nut and retune after big bends.
What tunings do metal guitarists use?
Common choices are half step down (E♭), drop D, drop C and D standard. On 7- and 8-string guitars, players also use drop A and drop E. You can find them all in the tuning menu and in the drop tunings chart.
All guitar tunings
Standard & down-tuned
Drop
Open
Alternate
7-string
8-string
12-string & guitalele
More tuners
- Bass Tuner 4, 5 and 6-string bass, from drop D to BEAD. E A D G
- Ukulele Tuner Soprano, concert, tenor and baritone ukulele. G C E A
- Violin Tuner G D A E with bowed reference tones. G D A E
- Viola Tuner C G D A, a fifth below the violin. C G D A
- Cello Tuner C G D A, an octave below the viola. C G D A
- Double Bass Tuner Upright bass in orchestral and solo tuning. E A D G
- Banjo Tuner Open G, double C, sawmill, tenor and Irish tenor. G D G B D
- Mandolin Tuner Mandolin, mandola and octave mandolin. G D A E
- Chromatic Tuner Any instrument or voice, with B♭/E♭/F transposition.
Music tools
- Metronome Accurate online metronome with accents and subdivisions.
- Tone Generator Play any frequency from 20 Hz to 20 kHz.
- Tuning Fork 415, 432, 440, 442 and 444 Hz forks.
- Pitch Detector See the exact note and frequency you play. C
- Custom Tuning Tuner Build any tuning with 3 to 12 strings. E A D G B E
- Tune Guitar by Ear Repeating reference notes for every string. E A D G B E