Photo to Dot-to-Dot
Make numbered outline puzzles from a clear silhouette, with a solution sheet.
Private by design
Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.
How to use Photo to Dot-to-Dot
- Use a dark subject against a plain light background, or try the sample.
- Adjust silhouette threshold and dot count. Review the completed outline as well as the puzzle.
- Print both sheets or download dot coordinates as CSV.
What are the limits of Photo to Dot-to-Dot?
Everything is generated on your device; photos, names and designs are not uploaded. No AI model or cloud processing is used. JPG, PNG and WebP: up to 20 MB and 16 MP per photo, 50 MB combined, four photos for a book and one for other tools. Photos are normalized to a 640-pixel working copy; complex textures and low contrast may need different settings. SVG and PNG export the selected sheet; PDF includes every sheet, including separate solutions. PDF artwork is rasterized at approximately 200 dpi on A4. SVG contains vector shapes/text and embedded pixels for photo puzzles; original metadata is not retained. Smaller inputs may be needed on mobile. Cancel stops the active worker; changing controls discards stale results. The largest dark connected region supplies the outer contour. This is silhouette thresholding, not object recognition; dark backgrounds can produce a rectangular outline. Dot labels can become crowded at high difficulty. The completed outline is included separately.