A native macOS drawing app for quick sketches, screenshot markup, and AI-generated diagrams
Stage
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Founded
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Based in
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Pricing model
Free
Freemium
Pricing
Not given
Free: $0 forever, includes all drawing tools, unlimited sketches in one folder, copy to clipboard as PNG, and auto-save with local-first storage. Pro: coming soon.
Key features
3D model viewer and editor
AI-powered design generation
Model plaza with ready-made designs
Parts list and assembly manual export
Inventory and space tracking
Community sharing and discussion
Multi-device synchronization
QUADRO factory app file compatibility
Instant copy-to-clipboard as PNG
No accounts or setup required
Local-first storage with auto-save
Screenshot annotation with arrows, boxes, text, and freehand tools
AI diagram generation via Claude, Cursor, Windsurf, and VS Code
Refine diagrams through chat
Paste screenshot from clipboard
Unlimited sketches in one folder
Native macOS performance
All drawing tools included in free version
What makes it different
Free, unlimited design exports and no desktop software required
Browser-based with no installation needed
AI design generation from natural language descriptions
Seamless integration with QUADRO factory software
Zero-friction design: open, draw, and share in seconds with no setup or accounts
Local-first architecture: all sketches stay on your Mac, nothing leaves unless you ask
AI integration runs through your own subscription with no proxying of prompts
Xiaomaifang
Chalk