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Open—Shape

openshape.app

Free plan WebiOS
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Spec score 7.7 #11 of 27 in Chord Finder Software

What it is

Open—Shape helps guitarists find playable chord voicings across the fretboard, including in different tunings. Its chord engine searches for shapes, filters them by note count, and supplies difficulty labels and fingering details. Users can chain and reorder chords, play progressions, and save them. The Free plan includes the full chord engine, every voicing, 33 built-in tunings, real acoustic guitar playback, a microphone tuner, and up to three saved progressions. Pro costs $9.99, paid once, billed one-time, and adds unlimited custom tunings and saved progressions. The tuner identifies strings in alternate and custom tunings; capo settings update chord voicings and progressions. A visual Canvas board for connecting chords, tuning, and capo runs in a desktop browser. Open—Shape is available on iOS and the web, and an account is not required. Saved tunings and progressions are stored in browser local storage, with backup export and import in Settings. Its privacy policy says tuner audio is analyzed in the browser and is not recorded or transmitted.

Spec sheet

What it does
Open—Shape is a guitar chord and progression tool that finds playable chord voicings across the fretboard in different tunings.Read 8 Oct 2026 · openshape.app
Privacy
The privacy policy says custom tunings and progressions are stored in browser local storage, and tuner audio is analyzed in the browser and not recorded or transmitted.Read 8 Oct 2026 · app.openshape.app
Support
Support is by email, and the site says replies usually arrive within a day or two.Read 8 Oct 2026 · openshape.app
Maker
The privacy policy lists Michael Gordon Hix as the contact for questions.Read 8 Oct 2026 · app.openshape.app
Account and backups
An account is not required; saved tunings and progressions live on the device, and the app provides backup export and import in Settings.Read 8 Oct 2026 · openshape.app
Audio
Chord playback uses recordings of a real acoustic guitar rather than synthesized tones.Read 8 Oct 2026 · openshape.app
Canvas
Canvas is a visual workspace for connecting chords, tuning, and capo on a board, and runs in a desktop browser.Read 8 Oct 2026 · openshape.app
Chord search
The chord engine searches the fretboard, filters voicings by note count, and labels shapes with difficulty and fingering details.Read 8 Oct 2026 · openshape.app
Data collection
The privacy policy says the service does not collect personal information or use cookies, analytics, or advertising scripts.Read 8 Oct 2026 · app.openshape.app
Progressions
Users can chain and reorder chords, play progressions back, and save them; the free plan allows up to three saved progressions.Read 8 Oct 2026 · openshape.app
Tuner and capo
The microphone-based tuner identifies strings in alternate and custom tunings, and capo settings update voicings and progressions.Read 8 Oct 2026 · openshape.app
Tunings
It includes 33 built-in tunings, and Pro unlocks unlimited custom tunings.Read 8 Oct 2026 · openshape.app

Plans and prices

Free Free Full chord engine and every voicing · 33 built-in tunings · real acoustic playback · mic tuner · up to 3 saved progressions Read 8 Oct 2026 · openshape.app
Pro $9.99, paid once one-time Everything in Free · unlimited custom tunings · unlimited saved progressions Read 8 Oct 2026 · openshape.app

Every Open—Shape plan and price →

Strong points and limits

Strong points

  • Full chord engine and every voicing in Free.
  • 33 built-in tunings.
  • Real acoustic guitar chord playback.
  • Backup export and import are available.

Limits

  • Free saves up to three progressions.
  • Unlimited custom tunings require Pro.
  • Canvas runs in a desktop browser.

Who it suits

It suits guitarists exploring chord shapes, alternate tunings, and progressions. People who want more than three saved progressions or custom tunings can choose the one-time Pro plan.

Verdict

Open—Shape brings chord search, progression building, tuning, and capo settings together for guitar. The free plan includes the main chord tools, while Pro removes the limits on saved progressions and custom tunings.

Where Specifiction places it

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