fretflip lets guitar players view, edit, create and share scales and chords on an interactive fretboard.
StringScales
StringScales offers an interactive guitar and bass fretboard for viewing scales, building chord progressions and playing to a backing band.
About StringScales
StringScales is a free, browser-based interactive fretboard for guitar, bass, banjo, ukulele and other stringed instruments. It displays scales in any key on a fretboard diagram that follows the chosen instrument and tuning, with options for three-notes-per-string or CAGED shapes, single positions or the whole neck, vertical or horizontal layout, and left- or right-handed viewing.
Key features
- Interactive fretboard lights up scale notes in the chosen key
- Chord progression builder with a scale tag per chord
- Live backing band plays your progression in any key
- Styles from blues shuffle to bossa, plus per-instrument mixing
- CAGED or three-notes-per-string layout, single or all positions
- Supports guitar, bass, banjo, ukulele and alternate tunings
Best for: String players who want to practice scales over their own chord progressions and see which notes fit each chord as the backing band plays.
Good for
- Described as completely free, with no trial, premium tier, ads, chord limits or loop limits
- No account is required to use the tool
- Covers a wide range of scales, keys, instruments and tunings
Watch out for
- Saving progressions and accessing them on another device requires a free account
- Microtonal tunings are offered as an experimental playground
- Built by one developer with no current revenue; paid extras for teachers and paid learning content may be added later
StringScales at a glance
- Website
- stringscales.com
- Category
- Lifestyle & Hobbies › Hobbies & DIY
- Type
- Website
- Pricing
- Free
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
StringScales alternatives
Tools and sites you could use instead, ranked by how closely they match.
The fretflip chart visualizes guitar, bass and ukulele scales in different keys and tunings on an interactive fretboard.
Fretastic displays guitar scales on an interactive fretboard, with CAGED positions and play-along tracks.
GuitarScale presents guitar and bass scales through fretboard diagrams, explanations and exercises.
Gitori teaches guitar fretboard notes, intervals, chords and scales through short practice games.
Explore guitar fretboard notes across standard, DADGAD, Drop D, Open G and other tunings, with left- and right-handed views.
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StringScales FAQ
Do I need an account to use StringScales?
No. Everything works without an account. A free account is only needed if you want to save progressions and pick them up on another device.
Is StringScales really completely free?
The site states that all features are free: all scales and keys, the progression builder, per-chord scale annotation, the live backing band, all styles and tempos, and unlimited progressions and saves, with no trial, premium tier, locked features or ads. It notes that paid extras for teachers and paid learning content may be added in the future while the tool itself stays free.
What instruments does it support?
StringScales is built for stringed instruments including guitar, bass, banjo and ukulele, with alternate tunings and different fretboard types.
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