Fretboard Lab See every voicing. Pick the one that fits.

Type Cmaj7, Am7, or I-V-vi-IV and explore playable fingerings sorted by position, span, open strings, and difficulty across standard and alternate tunings.

Download free trial Buy $19 lifetime

Guitar chord voicings you can actually use

Choose the shape that fits the song, not the first diagram on the internet.

Fretboard Lab is a local desktop chord voicing generator for guitarists, teachers, and songwriters who need chord symbols, slash chords, barres, roman numerals, alternate tunings, sorting, and export in one focused workspace.

Chord names become playable options

Type Cmaj7, Am7, Dm7b5, G13, slash chords, or roman numerals such as I-V-vi-IV and generate multiple playable guitar chord voicings.
The app exposes shape, notes, position, muted strings, open strings, span, difficulty, and barre detail so the choice is musical and physical.
This is built for real arrangement decisions: tighter comping shapes, easier teaching shapes, higher-neck color, and progressions that move smoothly.

The fretboard view does the comparison

SVG diagrams show finger numbers, open and muted markers, position labels, tuning notes, and barre markers instead of a single static chord box.
Sort by position, difficulty, span, or open string count to find voicings that fit the player's hand and the next chord.
Named tunings such as E Standard, Drop D, DADGAD, Open G, Open D, and Half Step Down let the same chord idea be tested across real guitar setups.

Export turns ideas into material

Export voicing diagrams as PNG, PDF, Markdown, or JSON for practice sheets, lessons, charts, and archive workflows.
Professional unlocks larger bulk export and progression handouts when the job is bigger than a single chord lookup.
Local desktop export keeps lesson material, student notes, and writing ideas in your own file workflow.

$19 lifetime for a focused chord lab

Community covers chord parsing, voicing generation, standard tuning support, and basic export.
Professional is a one-time $19 lifetime license for larger export workflows and serious handout production.
Buy it when the question is not what the chord is, but which voicing belongs in this bar, tuning, hand position, and song.

Free

Chord look-up, voicing preview, and basic export for standard tuning.

Chord parsing
Voicing generation
Standard tuning support
Basic format export

$19 lifetime

One-time professional license for larger export workflows.

Bulk export beyond small voicing sets
Larger progression handouts
Website checkout activation

Buy $19 lifetime

Compare

Fretboard Lab vs Fretboard Trainer, Oolimo, and Guitar Scales Apps

Hannes Software wins on focused local desktop workflows, $19 lifetime licensing, no subscription, simple export, and less friction than broader, more expensive, cloud-account, or overbuilt alternatives. Read why Hannes wins.

Capability	Fretboard Lab Best value	Fretboard Trainer apps	Oolimo	Guitar Scales apps/sites
Chord symbol parsing	Yes; chord symbols and roman numeral input direction	Usually limited	Web reference workflow	Usually limited
Playable voicing generation	Primary workflow	No, mostly drills	Reference-driven, not a local workbench	Usually scale-pattern focused
Alternate tunings	Standard and alternate tuning workflow	Varies	Tuning controls in chord tools	Varies
Difficulty/sort filters	Sort by position, span, open strings, difficulty	Training score/progress instead	Reference-driven, not an export queue	Pattern/category filters
Diagram export	PNG/PDF/Markdown/JSON product direction	Rare	Web diagram workflow	Varies
Theory lessons	Applied through chord results	Drill-oriented memorization	Web theory/reference content	Scale formulas and pattern content
Local desktop use	Yes, no subscription	Depends on app	Primarily web/app reference	Depends on app
Workflow pressure	Finding usable voicings for songs, lessons, and arrangements	Drill workflow before arrangement workflow	Web reference instead of local export workflow	Scale-shape workflow before chord decisions

Before using Fretboard Lab

Does Fretboard Lab require an internet connection?

No. Fretboard Lab is designed as an offline desktop reference for chord voicings, fretboard diagrams, tunings, and exports.

Which chord formats can I type?

The beta focuses on common chord symbols such as Cmaj7, Am7, Dm7b5, altered dominant chords, and simple roman numeral progressions.

Can I use alternate tunings?

Yes. The current build includes named tunings such as E Standard, Drop D, DADGAD, Open G, Open D, and Half Step Down. A user-defined tuning editor is not part of this build.

Can I export diagrams for lessons or charts?

Yes. Fretboard Lab is built around exportable voicing diagrams and structured chord data for teaching notes, practice sheets, and song charts.