String art generator
Turn a photo into a circular thread pattern, with a numbered pin sequence and printable template.
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Grayscale crop
Thread preview
Choose a photo or try the example.
Pin 0 is at the top. Numbers increase clockwise. Follow the numbers in the given order.
Assembly guide
The physical result depends on thread, tension and pin placement. Estimated length excludes knots and waste. Templates accept whole diameters from 20 to 100 cm; print at 100% and check the 100 mm scale. Tiled printing may be needed.
How to use: String art generator
Open an image or try the example. Adjust the circular crop, contrast and brightness, choose pins and lines, and generate the pattern. Follow the sequence with the guide or export PNG, SVG, TXT and PDF/SVG templates.
Before you start
Circular patterns with black thread on white only. Calculation uses a 500 × 500 working image and stops when no useful line remains. Fine details may be lost.
Frequently asked questions
Which photos work best?
Use well-lit portraits with contrast and simple backgrounds. Center the face with the crop and adjust contrast before generating.
How do I use the physical template?
Choose a diameter from 20 to 100 cm and download PDF or SVG. Print at actual size, verify the 100 mm scale and use tiled printing if needed. Pin 0 is at the top and numbers increase clockwise.