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
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US
Pricing model
Freemium
Freemium
Pricing
Free: Original view, Temperature map, Value structure, Saturation map, Palette and Harmony for every image, 20 analyses at a time. Lifetime Premium: one-time purchase includes Composition guides, Contrast map, tinted value bands, unlimited history, full-res export. No subscription.
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
Palette with proportions showing dominant colors sized by image weight
Color harmony identification (Complementary, Analogous, Triadic, Split-complementary, Tetradic, Square, Monochromatic)
Temperature map showing warm and cool distribution across image
Value structure divided into clear zones (light, mid-tone, dark)
Saturation map showing vivid and muted areas
Composition guides identifying classic guides like golden ratio and rule of thirds
Contrast map showing where the eye lands first (Premium)
Painter-friendly color names (Yellow Ochre, Payne's Gray, etc.)
Local device processing with no image uploads
Works offline with no account required
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
Shows color proportions, not just colors, recognizing that a 60/5 split is fundamentally different from 50/50
Four layers of analysis together show relationships single layers cannot reveal
Built by people who actually mix paint with painter-friendly vocabulary
Lifetime Premium with single payment, no subscription model
All data stays on device, no account signup required
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
Undertone
Onlook