Alternate Tuning Chord Finder for Drop D, DADGAD, Open G, and More
Explore guitar chord voicings across alternate tunings, compare playable shapes, and export diagrams for lessons, charts, and songwriting sessions.
Fretboard Lab is a desktop chord voicing workbench for guitarists, teachers, and songwriters who need playable shapes instead of another random chord box. Type a chord or progression, explore positions, compare difficulty, switch tunings, and export diagrams for practice sheets, lessons, charts, or writing sessions.
The problem with ordinary chord charts
Most chord charts answer the smallest possible question: where can I put my fingers for this chord? Real playing asks better questions. Which voicing fits the melody? Which one avoids the bass player's range? Which shape moves cleanly into the next chord? Which option can a student play today? Fretboard Lab is built around those practical choices.
A $19 tool for repeatable arrangement work
The value is not that the app knows a Cmaj7 shape. Free websites already do that. The value is the speed of comparing playable options, filtering by position and difficulty, changing tuning, and exporting clean diagrams without rebuilding the same search every time.
Alternate tuning changes every assumption
Drop D, DADGAD, Open G, Open D, and half-step-down tuning can make familiar chord names feel new again. Fretboard Lab lets you switch the tuning and regenerate practical shapes instead of hunting through separate charts. That is especially useful for fingerstyle arrangements, slide parts, folk songs, and heavier riffs.