Turn Any Photo Into a
Graphghan Pattern
The only free graphghan generator that corrects SC stitch aspect ratios. A single crochet stitch is 20% taller than wide — we compensate so your finished blanket matches the original image.
- 🧶SC 1.2:1 ratio corrected — portrait looks like the portrait, not a stretched version
- ✨Confetti reduction removes isolated color changes that mean extra bobbins and ends
- 🎨4-20 colors with one-click swapping — match yarn you already own
- 🧵Per-color yarn estimates: 12cm/SC stitch × count + 15% buffer = exact skeins to buy
Used by graphghan makers worldwide
Photo to Graphghan Chart in 4 Steps
Upload Your Image
Any photo, logo, pixel art, or portrait. JPG, PNG, or WebP up to 10MB. High contrast images with clear shapes produce the most readable graphghans.
Set Your Grid Size
Choose width in stitches — 100-120 for a lap blanket, 160-180 for a throw, 200+ for a full-size afghan. The generator shows finished dimensions in cm/inches using your gauge.
Pick Colors and Reduce Confetti
8-12 colors for most graphghans. Set confetti to Medium — it removes isolated stitches that would mean extra bobbin changes mid-row. Check the confetti % in the stats bar.
Download Your Chart
Free: watermarked PDF with full chart. Pro ($4.99/mo): clean HD PNG + PDF with color legend, yarn quantities per color, and 50×50 section pages for printing.
Built for Graphghan Makers
Graphghans have unique demands — large grids, many color changes, precise sizing. We handle each one.
Correct SC Aspect Ratio
Every free pixel-art tool treats stitches as square. A single crochet stitch is NOT square — it's 1.2× taller than wide. Feed in a square image on a square grid and your blanket comes out 20% too tall. ArtPatt reduces grid height per your gauge so the crocheted piece matches the original image proportions exactly.
Confetti Reduction for Clean Rows
Isolated single-stitch color changes are the graphghan maker's enemy: each one means picking up and dropping a bobbin for one stitch. Our majority-vote filter detects and removes them. Set to Medium for most photos — it merges isolated pixels with surrounding colors while preserving all the important detail.
Real Finished Dimensions
Enter your gauge (stitches per 10cm from a swatch with your yarn and hook), and the generator calculates exact finished width and height. Adjust grid size until you hit your target blanket size. No guessing — plan the project before you buy yarn.
Swap Any Color to Match Your Stash
The pattern uses algorithmically chosen colors — but you probably have yarn in your stash. Click any palette color to replace it from our searchable 120-color database. Merge two similar colors to simplify the pattern and reduce bobbins. See the change instantly in the preview.
Row-by-Row Progress Tracking
Pro users can track completed rows directly in the generator. Each row can be marked off as you finish it — the chart shows your progress visually and saves to your account so you can pick up where you left off across devices.
Print-Ready PDF with Section Pages
Graphghans are large — a 160×200 chart doesn't fit on one page. The PDF splits the chart into 50×50 sections with row and column reference numbers, plus a cover page with color legend, yarn codes, meters per color, and skein counts per color.
What Makes a Good Graphghan Image?
The best graphghan subjects are images with clear subjects, strong contrast, and defined color boundaries. Pet portraits work beautifully — especially close-up face shots with good lighting and a simple background. Video game characters and pixel art translate directly since they're already grid-based. Bold logos, silhouettes, and geometric designs become crisp, readable blankets.
Images that struggle: dark, underexposed photos (use the brightness slider before generating), very detailed backgrounds that compete with the subject (crop tightly first), and photographic gradients with subtle color transitions (try dithering mode to simulate the gradient with alternating stitches). For portraits, 15-20 colors captures enough flesh tone variation. For simpler graphics, 6-10 colors is cleaner and easier to crochet.
Grid size planning: at a typical US worsted weight gauge of 16 SC per 10cm, a 160-stitch wide blanket = 100cm (40 inches). A standard throw is 120×150cm — that needs roughly 195×240 stitches. That's a large project. Most graphghan makers start with a pillow cover (40×40cm = 64×64 stitches) or a tapestry bag panel (25×30cm = 40×48 stitches) to learn the technique before committing to a full blanket.
Graphghan vs Tapestry Crochet vs C2C
Graphghan (intarsia SC): uses separate yarn bobbins per color block, no carrying yarn. Thinner fabric than tapestry. Suitable for any number of colors. Best for detailed images where fabric weight matters. The chart reads identically to tapestry — the difference is in how you handle the yarn while working.
Tapestry crochet: carries all yarn colors inside stitches across every row. Creates a thick, dense fabric — great for bags, not ideal for large blankets. Limited to 8-12 colors before the fabric becomes unwieldy. ArtPatt's confetti filter was originally built for tapestry work.
C2C (corner-to-corner): each 'pixel' is a DC cluster, not a single stitch. Faster per square inch, but lower resolution. Great for large blankets when speed matters more than fine detail. Use our C2C pattern generator for this technique — it applies DC aspect ratio correction instead of SC.
What Graphghan Makers Say
“I've tried 4 different graphghan generators. ArtPatt is the only one that corrects for SC stitch ratios — my cat portrait actually looks like my cat instead of a tall, stretched version of her.”
Rachel W.
Graphghan hobbyist
“The yarn calculator saved me from my usual habit of buying too much. Knowing exactly how many skeins of each color I need meant I bought right and had almost nothing left over.”
Diane C.
Crochet blanket maker
“The confetti reduction made my 160-stitch portrait manageable. Went from 40+ color changes per row to under 15. Night and day difference in how long each row takes.”
Kathy B.
Advanced crocheter
Graphghan Pattern Generator FAQ
More Crochet Pattern Generators
Crochet Pattern Generator
Main crochet generator — SC, HDC, and DC with full stitch ratio compensation.
C2C Crochet Pattern Generator
Corner-to-corner graphghans with DC cluster ratio correction and yarn estimates.
Tapestry Crochet Pattern Generator
Colorwork bags and blankets with yarn-carry estimates and heavy confetti reduction.
Mosaic Crochet Pattern Generator
2-color slip-stitch patterns optimized for mosaic crochet technique.
Crochet Yarn Calculator
Estimate yarn quantities for any crochet project by stitch type and gauge.
Start Your Graphghan Pattern
Upload any photo. SC stitch ratio corrected automatically. Confetti reduced. Yarn estimated. Free.