About
A pattern generator that respects your yarn and your time.
ArtPatt started because free online pattern tools were either broken, stuffed with ads, or gated behind per-pattern fees. Crafters deserved something simple: upload a photo, get a printable chart with a color legend and yarn estimates, and move on to actually making the thing.
What the engine actually does
ArtPatt is a craft-aware, photo-first pattern engine: it turns one source image into a chart whose palette, geometry, cleanup, instructions, material estimates, and export format are adapted to the selected craft. Behind the preview, the engine combines perceptual color clustering, stitch-aware geometry, dithering, partial stitches, backstitch detection, and technique-specific confetti reduction. High-contrast compact marks receive extra attention, and candidate charts are compared against the source for color error and edge contrast before they are accepted.
Cross-stitch patterns are matched to the full DMC floss catalog (489 solid colors) using CIEDE2000 color distance. The generator also validates the output: if a meaningful subject collapses into an almost uniform chart, it can reject that attempt and tell the maker to increase the grid or palette instead of hiding the failure.
What ships in the PDF
- The chart across numbered pages with consistent 50×50 grid tiles
- Color legend with DMC codes, hex values, and symbols
- Yarn / floss quantity per color with a 15% waste buffer
- Row-by-row instructions for tracking progress
Supported crafts
Crochet (SC, HDC, DC with stitch-ratio correction), cross-stitch, knitting (stockinette 1.3:1 ratio), blackwork, diamond painting, embroidery, macrame, and punch needle. Specialized generators cover tapestry crochet, mosaic crochet, filet crochet, C2C, graphghan, Fair Isle, and intarsia. The complete workflow map is available in the ArtPatt engine reference.
Free vs Pro
The Free plan includes one pattern project with a full browser preview and unlimited edits. HD PNG and printable PDF exports require a single-pattern unlock or Pro ($4.99/month or $39.99/year). Pro also unlocks unlimited grid projects, a library that holds 50 saved patterns, and row tracking.
Get in touch
Feedback, feature requests, or a weird image that broke the generator — email social@artpatt.com.