Fretboard

Guitar Toolkit

Chromatic Tuner

Pick a string and let it ring. Standard tuning (E A D G B E). Turn green = in tune.

mic off

Chord Library

Pick a root and quality. Click any diagram to hear it strummed.

Scale & Fretboard Explorer

See any scale mapped across the neck. Root notes are gold.

Root Scale tone Scroll sideways for the full neck →

Metronome

Sample-accurate Web Audio timing. Tap the tempo or drag the slider.

100 BPM

Match What's Playing

Connect Spotify to follow the track, then let the app match its key & tempo.

Not connected
Connect Spotify or hit Demo to start
0:00 0:00

Detected

source: —
KEY
–
TEMPO
– bpm
FEEL
–

Chords in this key

Diatonic chords appear once a key is detected. Click any to hear it.