Free browser-based QR tools for 3D printing, Matter setup codes, and batch generation
Stage
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Founded
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Based in
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Pricing model
Freemium
Free
Pricing
Free: $0 with 5 4K exports per month and 3 saved palettes. Pro: $39 for 12 months with unlimited 4K exports and 50 saved palettes, one-time payment. Week Pass: $9 for 7 days with unlimited 4K exports, one-time payment.
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Key features
Three gradient styles: blobs, stripes, and clouds
Real grain rendering at export resolution
Pixel and dither finishes
4K JPEG export with no watermark
Color, blur, contrast and saturation controls
Palette saving and reuse
MCP server integration for coding agents
Free and unmetered previews in MCP clients
Commercial use on all plans
Figma integration via export and background image
QR Code to STL generator for 3D printing
Matter setup QR generation and decoding
Private QR code generator without redirect links
Barcode to STL converter for Code 128, EAN-13, and UPC-A
Crypto payment QR generator for Bitcoin, Ethereum, and Lightning
Browser-side QR payload generation
STL, SVG, and PNG export formats
Physical scanability guidance and print profiles
No account or login required
What makes it different
Grain is rendered into the image at full resolution, not pasted on top, so it survives JPEG compression, scaling and print
Preview matches the 4K export exactly; what you tune on a laptop is what lands on the monitor
Pay once, never auto-renews; no subscription required
Free tier is genuinely useful with 5 full-resolution 4K exports monthly
All QR generation occurs in the browser with no server-side processing or data collection
Specialized tools for physical QR code outputs like 3D prints and Matter device setup
Practical print profiles and scanability guidance for different real-world use cases
No redirect service inserted into static QR codes
Built-in validation checks and task-specific guidance for printing and device setup
Gradients Studio
priv QR