Precision tuning powered by Web Audio API.
Works with Acoustic, Electric, and Bass guitars.
Secure • Private • No Server Upload
Click "Start Tuning" and allow microphone permissions in your browser.
Play a single open string. The tuner will automatically detect the note.
Tighten or loosen until the needle is centered and turns green.
The most common tuning for a 6-string guitar is Standard E.
| String | Note | Frequency (Hz) |
|---|---|---|
| 6 (Thickest) | E2 | 82.41 |
| 5 | A2 | 110.00 |
| 4 | D3 | 146.83 |
| 3 | G3 | 196.00 |
| 2 | B3 | 246.94 |
| 1 (Thinnest) | E4 | 329.63 |