1
Load Image
Tap to select an image
Camera · Photo library · Files / PNG · JPG · WEBP
✓
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🔨
Trace Settings
Tap to expand ▼
Contour Detection
128
1.0
40
Options
Threshold
Light/dark boundary. Lower → detect only dark areas / Higher → detect wider range
Smoothing
Smooths jagged contours. Higher → more rounded
Min Area
Exclude contours smaller than this area (px²). Useful for noise removal
Remove Islands (keep largest contour only)
Removes isolated small contours, optimized for stencils
Invert (detect bright areas)
White bg + black art → OFF / Black bg + white art → ON
Bézier Curves (smooth)
ON: curved paths / OFF: straight lines only
AI
Gemini AI High-Quality Conversion
Tap to expand ▼
gemini-2.5-flash-image converts your image to a stencil-ready black & white image, then traces it to SVG.
Your API key is stored only in this browser and never sent to any server.
Your API key is stored only in this browser and never sent to any server.
🔑 How to get an API key (free · ~1 min) Tap to expand ▼
1
Open Google AI Studio using the button below
2
Sign in with your Google account (skip if already signed in)
3
Click "Create API key" and copy your key
4
Return to this page and paste the key in the field below
💡 Free tier is sufficient. No credit card required. Key is stored only in this browser and never sent externally.
🎯 Standard
💪 Bold
🔗 Bridge
🪖 Military
🎨 Street Art
⬛ Minimal
🪵 Woodcut
📐 Technical
📜 Vintage
✍️ Graffiti
Sending image to Gemini 2.5 Flash Image...
Receiving stencil image...
Tracing to SVG...
Done
Gemini Output — Paint Edit / Crop
Result will appear here after running Gemini
▶
Result & Export
Select Variant
Output Size
Load an image to auto-generate SVG
250mm (long side)
100mm width
50mm width
Save as default.svg, then upload to MakerWorld Stencil Sheet Maker.
SVG is exported in mm units (250mm long-side / FDM max print size).
SVG is exported in mm units (250mm long-side / FDM max print size).
🖨️
Open ↗
Use with Stencil Sheet Maker
Upload your SVG to MakerWorld and 3D print your stencil sheet