Local Processing 🔒 100% Private 📐 7 Styles

Stained Glass Mosaic Studio

Professional polygon portrait generator. Choose from 7 geometric styles, custom lead colors, glass shimmer, gallery presets & high-resolution export — all processed privately in your browser.

🖼️ Upload an image or pick from the gallery
Processing...
📤 Click or Drop Photo
JPG · PNG · WebP · HEIC
Show Outlines
White Background
Glass Shimmer Overlay
Scale:
Generate artwork to see history

🔒 Everything processed locally. Zero data sent.

Frequently Asked Questions

How does stained glass generation work?
The tool divides your photo into polygonal cells using Voronoï or other geometric algorithms. Each cell is filled with the average color from that region, and customizable outlines simulate lead joints, creating a realistic stained glass effect.
What are the 7 style differences?
Stained Glass: Organic Voronoï cells. Low Poly: Classic triangular mesh. Hexagonal: Honeycomb pattern. Cubist: Regular grid blocks. Diamond: Diagonal tiles. Triangles: Uniform triangulation. Circles: Circular cell packing.
Can I change the outline color?
Yes! Choose from preset lead colors (black, bronze, gold, silver, copper, white) or use the custom color picker for any hue you want.
Is my image uploaded anywhere?
No — all processing runs locally in your browser via JavaScript Canvas API. Your image never leaves your device. You can even disconnect from the internet and it still works.
What export resolutions are available?
You can export at 1×, 2×, 3×, or 4× the preview resolution for print-ready quality. The download is always in PNG format.

Learn how to use this tool in our complete sticker guide.