Guitar Tools — free online guitar chord trainer, interactive fretboard & scale practice

Guitar Tools is a free, browser-based toolkit for guitarists: an atomic chord trainer that builds chords one finger at a time, an interactive fretboard with scale and chord overlays, guided practice and songs, music theory, tips and a tuner. No signup, no install — it runs entirely in your browser. Enable JavaScript to use the interactive tools.

Left-handed

Mirror chord diagrams and fretboard for a left-handed guitar.

Show scale degrees by default

Label fretboard notes with their scale degree (1, 2, 3…) instead of the note name.

Lesson progress

Reset all completion marks. Cannot be undone.