Enter any webpage URL and let AI analyze colors, fonts, spacing, motion, and component styles. Get a structured design spec document in 30 seconds.
▊Extraction Results
Each card shows a real extraction summary with core design data
Efficiency
Dimensions
Auto-extract all CSS custom properties into a complete token map
Identify font families, weights, size hierarchy, line-height, and letter-spacing rules
Extract primary, secondary, text, and background colors with precise HEX/RGBA values
Parse multi-layer shadows, gradient directions, and color stops
Capture transition and animation durations, easing curves, and delays
Complete style definitions for buttons, cards, inputs, badges, and more
Reconstruct 8px-based or custom spacing systems with full rules
Identify media query breakpoints and folding strategies
Auto-capture top, 35%, and 70% screenshots to help AI understand visual hierarchy
Integrations
Feed DESIGN.md directly to AI coding tools. Zero ambiguity in replicating any visual style.
FAQ
Web design spec extraction is the process of automatically analyzing a target webpage's CSS, DOM structure, and visual presentation to extract design elements such as color schemes, font systems, spacing rules, component styles, and motion parameters. These are then organized into a structured DESIGN.md document for designers or AI coding tools to reuse.
Free plan lets you use your own OpenAI-compatible API Key for unlimited analysis. All design data is processed locally in your browser. Pro ($5/mo) provides platform quota without API Key setup.
Currently Google Chrome and all Chromium-based browsers (Edge, Arc, Brave, etc.). Firefox and Safari versions are in development.
Any publicly accessible HTTPS webpage. Login-required pages, iframe content, or dynamically rendered Canvas may not be fully captured.
Yes, we follow the community-recognized DESIGN.md spec with Visual Theme, Color Palette, Typography, Component Stylings, Layout Principles, and Motion Design modules.
DESIGN.md is plain Markdown. Any AI tool that reads Markdown works: Cursor, Windsurf, GitHub Copilot, Claude Code, Trae, and more.
Absolutely. Your API Key is stored only in chrome.storage.local on your device. It never leaves your browser or goes to our servers.
We combine DOM structure analysis, Computed Styles, and visual screenshot understanding to extract details down to OpenType features, multi-layer shadow parameters, and optical compensation values.
Turn any webpage into a reusable DESIGN.md in 30 seconds