A native macOS drawing app for quick sketches, screenshot markup, and AI-generated diagrams
A free, local-first visual editor for designers to craft code in real React codebases
Stage
Not given
Startup
Founded
Not given
Not given
Based in
Not given
US
Pricing model
Freemium
Freemium
Pricing
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.
Free self-hosted version available on GitHub. For Teams: Custom pricing tailored to your team's needs. Contact us or book a demo.
Key features
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
Real-time visual editing of React components
Infinite canvas design interface
Real-time collaboration on code
Works with existing React projects and Storybook
What makes it different
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
Code is the source of truth—no design drift from implementation
Works directly in real codebases with existing design systems
AI-assisted design generation that understands React architecture
Open-source and transparent to the development community
Chalk
Onlook