The short answer: Free to browse, every scale in every root, with no account needed. Pick a root note and a scale, and the shape is worked out and drawn for your instrument — the whole neck or a single position box on guitar, bass and ukulele, the keyboard or a fingering view on piano. The 35 scales include the major scale, the natural minor scale, the harmonic minor scale and the melodic minor scale, the blues scale, and the major pentatonic scale and minor pentatonic scale — in all 12 roots, labelled as note names or scale degrees.
Last updated: August 2026
A scale is a rule about intervals. What you need at the instrument is where that rule lands under your fingers, in this key and this position. The Scale Dictionary does that conversion for guitar, bass, ukulele and piano, and draws the answer.
Any of the 35 works on any of the 12 roots.
The same four instruments as the Chord Dictionary: guitar, bass, ukulele and piano. Fretted diagrams use standard tuning — guitar EADGBE, bass EADG, ukulele GCEA — so the diagram matches an instrument tuned the usual way. It is computed from the root and scale you chose, then drawn as SVG.
On guitar, bass and ukulele you can see the whole neck at once, frets 0 to 15, or narrow it to position boxes — one region of the neck at a time, the way most people learn a scale.
On piano there are two views: the keyboard, and a fingering view showing standard right-hand fingering.
The labels on the diagram toggle between scale-degree numbers and note names. Degrees travel between keys, so read those when you are learning a pattern you intend to move around; read note names when you need to know which pitches you are playing.
A browser, and nothing else. The page is free to use, and no account is needed to browse it. Note that it draws scales rather than sounding them — playback lives in the Chord Dictionary, where every chord voicing has a play button. Both dictionaries are listed on Music Tools.
How many scales are there, and in which keys? 35 scales, grouped as common, modes, harmonic and melodic, and exotic. Each can be built on any of the 12 root notes.
Can I hear the scale? No. The Scale Dictionary draws scales rather than playing them. To hear something, the Chord Dictionary has a play button on every chord voicing.
Which tuning are the diagrams drawn in? Standard tuning on all three fretted instruments: guitar EADGBE, bass EADG, ukulele GCEA.
Can I see note names instead of numbers? Yes. The labels switch between scale-degree numbers and note names, on the neck views and the piano views alike.