A free tool to visualise scales on a guitar

In plain words

StringScales is a free tool that visualizes guitar scales across the fretboard. It lets guitarists explore various scales with customizable highlighting options like CAGED and 3NPS positions. Designed for both practice and teaching, the tool offers an intuitive, accessible interface without paywalls or premium tiers, making scale learning straightforward and flexible for users at any level.

written from the facts on this page · September 2026

From the sources

Drop in a chord progression, tag each chord with a scale, and press play. StringScales plays a live band in any key, tempo and style while your fretboard lights up the right notes for every chord. Every scale, every tuning, no account, completely free.

Free interactive fretboard for guitar, bass and more: visualize any scale, build chord progressions, tag each chord with a scale, and play along with a live backing band. No account needed.

Pick a scale, build a progression, play along: a live band and a fretboard that lights up the right notes in time. Drop in the chords you want to practice. Tag each one with a scale, dorian here, altered there, harmonic minor on the turnaround. Press play and StringScales plays the band live, in any key, tempo, and style, lighting up the right notes on the fretboard for every chord. As many chords, loops, and progressions as you want. It's all free. No need to start from a blank timeline: load a preset progression, from the popular classics or browsed by scale, so a hungarian minor gets changes that actually fit it. Then shape the band in the playback controls: styles from blues shuffle to…from stringscales.com

In the maker’s words, at launch

Hey everyone, I wanted to share something I’ve been working on that I think could be really helpful for fellow guitarists. It’s called StringScales (https://stringscales.com), and it’s a free tool that I built because, honestly, I've been able to learn so much about music on the internet, and I wanted to…

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