Guitar Fretboard Generator
C Major G Major D Major A Major E Major B Major F# Major
C Major F Major Bb Major Eb Major Ab Major Db Major Gb Major
A Minor Pentatonic E Minor Pentatonic B Minor Pentatonic F# Minor Pentatonic C# Minor Pentatonic G# Minor Pentatonic D# Minor Pentatonic
A Minor Pentatonic D Minor Pentatonic G Minor Pentatonic C Minor Pentatonic F Minor Pentatonic Bb Minor Pentatonic Eb Minor Pentatonic
C Major Triad G Major Triad D Major Triad A Major Triad E Major Triad B Major Triad F# Major Triad
C Major Triad F Major Triad Bb Major Triad Eb Major Triad Ab Major Triad Db Major Triad Gb Major Triad
A Minor Triad E Minor Triad B Minor Triad F# Minor Triad C# Minor Triad G# Minor Triad D# Minor Triad
A Minor Triad D Minor Triad G Minor Triad C Minor Triad F Minor Triad Bb Minor Triad Eb Minor Triad

Some tips:

Hold shift when clicking a note to make it appear red.

Click a note twice to respell it's accidental.

Use the fret range limitations to display scales in specific positions.

Use the 'Reduce G String Range' option to avoid doubleups of notes.

Use the string inclusion options to display scales across specific strings.