Reduce a picture to two states
The converter maps image cells to open or filled chart positions; the threshold and inversion controls change the motif.
Filet Crochet Pattern Maker
Turn an image or text into an editable two-state filet crochet chart. Set chart width, switch between open and filled cells, review row sequences, and estimate the chart size from your own gauge before printing.
Chart preview
24 × 24 positions
Example chart loaded. Choose a color and paint, or upload an image.
Keyboard: focus the chart, use arrow keys to move, then press Space or Enter to paint.
Open and filled cells are chart states. Verify the mesh repeat and stitch instructions for your project.
Features
Explore what this workspace can do, how each control affects the result, and which export fits your next step.
Edit the open mesh
Paint or erase filled cells and inspect each row before printing.
Estimate size from your gauge
Enter your own cell and row gauge to calculate an approximate chart size.
Keep construction instructions separate
The export is a chart reference, not a verified foundation-chain or row-by-row filet instruction set.
Build an open-and-filled filet chart
Use a two-state grid for motif planning, then apply the mesh and gauge rules for your own project.
Load or enter a motif
Use the sample, type a short label, or upload an image to make a binary grid.
Tune the open and filled cells
Adjust the threshold, invert the design if needed, and paint corrections.
Check gauge and print
Review the chart rows and estimated dimensions, then print or save a PDF.
Read the two states as a motif map
Filled cells show the motif and open cells show the background in this chart. A photo is reduced to a two-color threshold, so strong contrast and simple outlines tend to be easier to interpret than fine texture.
Open and filled positions describe the chart only. Verify the mesh repeat, turning edge, and stitch notation for the method you use before treating it as a written pattern.
Size the grid with a measured gauge
Enter the number of chart cells and rows in four inches to estimate the finished width and height. The calculation reflects those values; it does not predict yarn behavior or fabric drape.
Make and measure a swatch using the intended yarn and hook, then revise the gauge inputs if your project needs a closer size estimate.
Filet crochet chart questions
Can I make a filet chart from a photo?
Yes. Upload an image and the tool converts it to open and filled cells that you can edit.
Can I make a name or text chart?
Yes. Enter a short label to render it as a two-state chart, then adjust the width and cells.
What do open and filled cells mean?
They are two chart states: the filled state marks the motif, and the open state marks the background.
Does the page calculate foundation chains and row instructions?
No. It exports the open-and-filled chart, but does not generate verified filet stitch instructions.
Can I invert the motif?
Yes. Use Invert to swap the open and filled chart positions.
How do I estimate the finished dimensions?
Enter your chart-cell and row gauge per four inches. The tool calculates an estimate from the current chart dimensions.
Are the dimensions exact?
No. They depend on your entered gauge and should be checked against a swatch made with your own yarn and hook.
Can I correct cells after conversion?
Yes. Select the filled or open state and paint on the chart. Counts and row sequences update immediately.
Can I print the filet chart?
Yes. Print view shows the grid, open and filled key, row numbers, and row sequences.
Is my photo saved or uploaded?
No. Conversion takes place in the browser and the page does not save the image or chart online.