How to use Jigsaw Harbor
Choose and solve
Pick a credited picture, choose 6, 12, 24 or 48 pieces, then drag matching pieces close together. Connected pieces move as one group. Use Tidy to return loose pieces to the tray without breaking joined groups, Edges to focus on perimeter pieces, Preview to check the picture, and the zoom buttons to inspect the board.
Resume or restart
Built-in puzzle progress is saved automatically in this browser. Saved difficulties appear on their picture cards, while a focused theme keeps unrelated work behind an explicit continue action. Active solving time carries across sessions; time from older saves that did not record it is shown as unavailable. Restart restores the current puzzle’s initial layout. Clear progress removes the saved state. A configuration link carries only a built-in picture id and difficulty; it never contains private image data.
Use your own picture
PNG, JPEG and WebP files up to 20 MB are decoded in your browser. Images must be 320–8192 pixels on each edge, no more than 16.7 megapixels, and no wider or taller than a 4:1 ratio. Private pictures are not uploaded and cannot be shared across devices with a link.
If something fails
A damaged, unsupported or oversized file is rejected before play. Try exporting a smaller PNG, JPEG or WebP. If saved progress becomes incompatible, clear it and start the puzzle again.