Chrome Extension

Extract the design language of any website in one click

BacktraceDesign reverse-engineers colors, typography, spacing, and component styles into a comprehensive, exportable style book.

Three steps to a complete style book

No setup, no API keys. Just right-click and extract.

1

Right-click any page

Select "Extract styles from this page" from the context menu on any website.

2

Automatic extraction

BacktraceDesign scans every element, stylesheet, and CSS variable to build a complete picture.

3

Browse your style book

A beautifully formatted style book opens instantly. Export as PDF, JSON Tokens, CSS Variables, or Tailwind Config.

Everything you need to understand a design system

BacktraceDesign captures every visual detail and organizes it into a readable, shareable document.

Color Palette Extraction

Automatically curates brand colors from backgrounds, text, borders, and stylesheets with semantic role detection.

CSS Variable & Token Detection

Discovers custom properties and maps semantic tokens to their base color values across all stylesheets.

Typography Analysis

Captures font families, sizes, weights, line heights, and letter spacing for every heading and body style.

Button & Link Styles

Extracts every button variant and link style with live-rendered previews showing padding, borders, and shadows.

Spacing & Shadow Tokens

Identifies recurring spacing values, border radii, and box shadows used throughout the page.

Multiple Export Formats

Export as PDF for sharing, JSON design tokens, CSS custom properties, or a Tailwind CSS config file.

From browser to codebase in seconds

Choose the format that fits your workflow.

PDF

PDF Style Book

A print-ready document with all colors, type, and components. Perfect for handoffs and presentations.

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JSON Tokens

Structured design tokens compatible with Style Dictionary, Figma Tokens, and other token pipelines.

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CSS Variables

A ready-to-use CSS file with custom properties for colors, spacing, radii, and shadows.

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Tailwind Config

A tailwind.config.js extending the default theme with the extracted palette, fonts, and spacing scale.