Real product screens and design references for coding agents
A native macOS drawing app for quick sketches, screenshot markup, and AI-generated diagrams
Stage
Not given
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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
Browse onboarding flows and user journeys
Measured design guides with fonts, colors, and spacing
Compare UI designs against real products
Generate agent-ready build prompts
MCP server integration with Claude, Cursor, VS Code, ChatGPT
REST API endpoint for programmatic access
Documented interactions and design observations
No account or API key required
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
191 product collections with 7,803+ real UI captures, not templates or mockups
Designed specifically for coding agents to reference during UI development
Free with no limits, accounts, or API keys required
MCP server compatibility for seamless agent integration
Documented design patterns with measured design guides for each product
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
Screenrove
Chalk