Lay jigsaw pieces on a plain table, snap a photo, and this app finds every piece, compares the shapes of all their sides and assembles as much of the puzzle as it can — or just tells you which pieces belong next to the one in your hand.
Shape analysis & solver: byWulf/jigsawlutioner by Michael Wolf (MIT). Demo pieces from jigsawlutioner-cli.
One photo can hold dozens of pieces. Pieces must not touch each other or the photo border.
Tap a piece to see which pieces fit each of its sides.