Hey Product Hunt 👋 I kept losing track of chord shapes every time I switched guitar tunings — DADGAD, drop tunings, open tunings all mean re-learning the same progression by hand. That annoyance is basically the whole reason Open—Shape exists. The canvas treats a tuning, a capo, and each chord as connected objects instead of static diagrams. Change the tuning node once and every chord downstream re-voices itself, computed live by a chord-voicing engine rather than looked up from a chart — it searches every playable fingering and picks the best one, and you can page through alternatives per chord. It started as just a chord finder; the canvas came later once I realized the real problem wasn't finding one chord, it was keeping a whole progression consistent across a tuning change. Free to use, with a one-time Pro upgrade for unlimited canvases and saved progressions. Also on iOS. Would love feedback, especially from anyone who plays in alternate tunings a lot — what's confusing, what's missing, what tuning to add next.

Open—Shape

Chord progressions for guitar that adapt to any tuning

Chord progressions for guitar that adapt to any tuning