Free • Private • Printable

Mosaic Crochet Pattern Generator

Convert an image into a simplified two-color chart for planning mosaic-style crochet designs.

Your workspace

Image & settings

See how the generator works without uploading a photo. Your image stays on your device.

Image shape
Pattern preview

Generated pattern

Your crochet chart will appear here.

Upload an image or try a sample, then choose Generate Pattern.

How it works

01 · Upload an image

Choose a JPG, PNG or WebP image. It stays on your device.

02 · Choose grid and colors

Set stitch width, image shape, palette size and chart options.

03 · Generate and download

Inspect the chart, then save a PNG, CSV or printable PDF.

What this tool creates

The threshold separates light and dark areas into two colors. This tool creates the visual chart. Always review stitch placement before crocheting a finished mosaic design.

Tips for better results

  • Choose a bold image with distinct light and dark regions.
  • Move the threshold until narrow features stay visible.
  • Keep symbols on for reliable printing.
  • Review every row for mosaic stitch feasibility.

Frequently asked questions

Does this generate overlay mosaic instructions?

No. It creates a two-color visual chart that you must review for stitch placement.

How does threshold work?

It controls which image cells become the light or dark color.

Can I print the mosaic chart?

Yes. Print or download a PNG with symbols and a legend.

Does it use exactly two colors?

Yes. The mosaic mode maps every cell to one of two colors.

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