Chrome extension · No API key required

Capture any design system.
Ship it with any AI agent.

Design Catcher reads the page you're on — DOM, computed styles, CSS variables, and layout — then writes a portable 3-file bundle your coding agent can follow to match the same look and feel.

Community cache

Explore design captures

Search and filter by page type, industry, or layout pattern. Each capture links to the live site and its design bundle.

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bmw.com/m

THE ULTIMATE

Driving machine

capture bundle
  • DESIGN.md
  • STRUCTURE.md
  • UI-KIT.md

Why Design Catcher

Impeccable writes specs from your codebase. We capture them from any site you visit.

Tools like Impeccable generate portable design docs for AI agents — but only from projects you already own. Design Catcher closes the gap: point at any live URL and export the same structured bundle, ready for your agent. Learn about Impeccable.

Everything you need

From live webpage to agent-ready specs in one capture

Stop screenshotting and guessing tokens. Get structured markdown that mirrors how Impeccable and Google Stitch document design systems — sourced from any URL you visit.

01

DESIGN.md — your design system

Colors, typography, spacing, radius, shadows, and component patterns — extracted deterministically from computed styles and CSS variables, then refined by Gemini into token refs like `{colors.primary}` and `{spacing.section}`.

  • ATS-friendly token naming
  • Do's and Don'ts for agents
  • Responsive behavior notes
02

STRUCTURE.md — page anatomy

Hero blocks, nav patterns, section rhythm, carousels, scroll behavior, and motion — so your agent rebuilds layout and hierarchy, not just colors.

  • Section map with roles
  • Animation and carousel hints
  • Interaction patterns
03

UI-KIT.md — library mapping

Maps detected patterns to shadcn/ui, Aceternity, Magic UI, 21st.dev, and more — so agents pick the right primitives instead of reinventing buttons.

  • Component library signals
  • Variant and state notes
  • Drop-in implementation hints
04

Community cache — instant replay

First capture of a domain runs on Gemini in the cloud. Every visit after that loads the bundle from cache in seconds — same three files, no duplicate LLM spend.

  • Keyed by hostname
  • 10 new captures per IP per day
  • Instant load on repeat domains

Real captures

Job-winning design specs from sites you admire

Browse the community gallery. Each bundle links back to the live URL it was captured from.

Your capture bundle

Three markdown files. One drop-in folder.

Save the bundle beside your codebase or paste sections into Cursor, Claude Code, or Codex — the same schema every time.

DESIGN.md

Tokens, colors, type scale, components

STRUCTURE.md

Sections, hero, motion, carousels

UI-KIT.md

shadcn, Aceternity, Magic UI mappings

How it works

The fastest path from inspiration to implementation

  1. Step 1

    Visit any site

    Open the page you want to replicate — landing page, dashboard, or marketing site.

  2. Step 2

    Capture in one click

    The extension extracts facts from the DOM, then cloud LLM synthesizes your three markdown files.

  3. Step 3

    Ship with your agent

    Drop the bundle into your repo root or agent prompt. Build with confidence — same visual language, your stack.

Built for builders

The most effective way to borrow UI without pixel-pushing

"I used to screenshot Stripe and guess spacing. Now I capture once and Cursor follows DESIGN.md — shipped a pricing page in an afternoon."

— Indie SaaS founder

"STRUCTURE.md is the missing piece. Agents finally respect section order and carousel behavior instead of flattening everything."

— Frontend engineer

"Community cache means revisiting apple.com doesn't burn another generation. The extension feels instant on repeat domains."

— Design engineer

And more

Other Design Catcher capabilities

Deterministic extraction

DOM, computed styles, CSS variables, page sections, animations, and carousels — facts before the LLM writes a word.

Side panel preview

Tab between Design, Structure, and UI Kit. Copy or download each file without leaving the page.

Works with every agent

Cursor, Claude Code, Codex CLI, Gemini CLI, VS Code Copilot — one bundle, any harness.

Private when you need it

Optional BYOK for local-only synthesis. Cloud path uses Gemini on GCP — keys never touch our servers.

Public git mirror

Captures sync to the community cache so you can browse and reuse design bundles.

Cloud-powered

Gemini on GCP synthesizes new captures — no API key required in the extension.

Works with

CursorClaude CodeCodex CLIGemini CLIVS Code Copilot

Ready to catch your next favorite UI?

Add Design Catcher to Chrome and capture your first design system in minutes. Chrome Web Store listing coming soon.