ScaleSpace is a free scale finder: pick any of 24 scales, modes, and arpeggios in any of the 12 keys and see it laid out on a 24-fret guitar or bass neck, a ukulele, or a piano keyboard. Overlay a second or third scale to see exactly which notes they share. No sign-up, no account.
ScaleSpace overlays two or three scales on one fretboard or keyboard at the same time, drawing every note the scales share as a split two-color dot. Relationships you would otherwise work out on paper — which notes A minor pentatonic and C major pentatonic have in common, how Dorian differs from Aeolian — become visible at a glance.
ScaleSpace supports 4-, 5-, and 6-string bass, 6- and 7-string guitar, ukulele, and piano. Guitar and bass necks run the full 24 frets. Alternate tunings include drop D, drop C, drop B, drop A, DADGAD, open D, open G, half-step down and whole-step down, plus the tenor high-C tuning for 5-string bass — every chart re-spells itself for the tuning you pick, with correct enharmonics, so you get E♭ where the key calls for E♭ and D♯ where it calls for D♯.
Scales are shown across the whole neck or narrowed to a single position: the five-box pentatonic system on bass, three-notes-per-string shapes on guitar, triad inversions in root, first, and second position, or a plain fret window. Tap any note to hear it at true pitch, and export any chart as a free PDF built for printing.
Yes. ScaleSpace is free to use with no account, no sign-up, and no paywall. It also works offline once loaded.
Yes. ScaleSpace can show up to three scales on the same fretboard or keyboard at once, and marks every note they have in common as a split two-color dot.
Yes. ScaleSpace covers 4-, 5-, and 6-string bass with the same scales, tunings, and position systems as guitar, including the five-box pentatonic system.
24 scale types in all 12 keys: major and minor pentatonic, major and minor blues, major, natural minor, harmonic minor, melodic minor, all seven modes, and 11 arpeggio types including major, minor, dominant 7, and diminished.
Yes. Any view exports as a free PDF laid out for printing, including the legend and the instrument and tuning it was built for.