7-string guitar tuner
Pluck a string — the tuner recognises it and shows whether to tighten or loosen it. It works with your microphone right in the browser; the sound is never uploaded.
Microphone needed
Sound is analysed right in your browser and never uploaded. The browser will ask for permission once.
—
turn on the microphone
Auto: the string is detected automatically. Tap a string to hear its note — the tuner will then listen only to it.
A reference: 440 Hz
7-string guitar tuning
The Russian 7-string guitar is tuned to open G: D G B D G B D, from the thick 7th string to the thin 1st. A 7-string electric guitar is tuned B E A D G B E — standard tuning plus a low B.
- 7th string — D2, 73.42 Hz
- 6th string — G2, 98 Hz
- 5th string — B2, 123.47 Hz
- 4th string — D3, 146.83 Hz
- 3rd string — G3, 196 Hz
- 2nd string — B3, 246.94 Hz
- 1st string — D4, 293.66 Hz
Other tunings in the list: 7-string electric (B E A D G B E).
How to tune a 7-string guitar online
- Press "Turn on microphone" and allow access — the sound is processed right in your browser and never uploaded.
- Pluck one string. The tuner recognises it and the needle shows how far it is below or above the note.
- Needle left of centre — the string is flat, tighten the peg. Right — it is sharp, loosen it. The green zone (±5 cents) and a check mark mean the string is in tune.
- Prefer tuning by ear? Tap a string in the list to hear its note.
- Tune from the 7th string to the 1st and go through them a second time — with more tension, the other strings shift more.
Frequently asked questions
How is a Russian 7-string guitar tuned?
D G B D G B D. The open strings form a G major chord.
Does it work for a 7-string electric guitar?
Yes, choose "B E A D G B E": the tuner hears the low B (61.74 Hz) too.