TrueTuner

Always in Tune

Universal

Chromatic Tuner
ACTIVE
All notes · C–B

Guitar

Standard
6 STRINGS
E4 B3 G3 D3 A2 E2
Half Step Down
6 STRINGS
D#4 A#3 F#3 C#3 G#2 D#2
Open G
6 STRINGS
D4 B3 G3 D3 G2 D2
Drop D
6 STRINGS
E4 B3 G3 D3 A2 D2
D-A-D-G-A-D
6 STRINGS
D4 A3 G3 D3 A2 D2
Drop C
6 STRINGS
D4 A3 F3 C3 G2 C2
Standard B
7 STRINGS
E4 B3 G3 D3 A2 E2 B1

Bass Guitar

Standard
4 STRINGS
G2 D2 A1 E1
Half Step Down
4 STRINGS
F#2 C#2 G#1 D#1
Drop D
4 STRINGS
G2 D2 A1 D1
Drop C
4 STRINGS
F2 C2 G1 C1
Standard B
5 STRINGS
G2 D2 A1 E1 B0

Bowed Strings

Violin
4 STRINGS
E5 A4 D4 G3
Viola
4 STRINGS
A4 D4 G3 C3
Cello
4 STRINGS
A3 D3 G2 C2
Double Bass
4 STRINGS
G2 D2 A1 E1

Ukulele

C-Tuning
4 STRINGS
A4 E4 C4 G4
D-Tuning
4 STRINGS
B4 F#4 D4 A4

Banjo

Standard G
5 STRINGS
D4 B3 G3 D3 G4
C-Tuning
5 STRINGS
D4 B3 G3 C3 G4

Tenor Banjo

Standard
4 STRINGS
A4 D4 G3 C3
Irish
4 STRINGS
E4 A3 D3 G2

Mandolin

Standard
4 STRINGS
E5 A4 D4 G3
Cross A
4 STRINGS
E5 A4 E4 A3
Cross G
4 STRINGS
D5 G4 D4 G3

Universal

Chromatic Tuner

A free online chromatic tuner with real-time pitch detection, cents feedback, and an adjustable A4 reference — tune any note, any instrument.

TrueTuner

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