Siteprint

Product Introduction

1. Definition: Siteprint is a native Safari extension for macOS that functions as a web design measurement and extraction tool. It is a desktop utility that analyzes the rendered CSS and DOM structure of any webpage directly within the Safari browser.
2. Core Value Proposition: It exists to bridge the gap between visual design inspiration and functional code implementation for developers and designers. Its primary function is to automate the tedious process of manually inspecting and documenting a website's design system—including color palette, typography, spacing, and layout—and output it as a structured, machine-readable prompt for AI coding assistants.

Main Features

1. Comprehensive Design Audit: Siteprint performs a technical analysis of a webpage's computed styles. It extracts the exact color hex codes and intelligently assigns semantic roles (e.g., Canvas, Surface, Text, Muted). It measures the typographic scale (font sizes, weights, line heights), calculates spacing values (margins, paddings, gaps), and identifies border-radius values. This audit runs locally on the user's Mac.
2. AI-Optimized Prompt Generation (Pro Feature): The core technical output is a single, consolidated text prompt containing all measured design tokens. This prompt is formatted for direct ingestion by AI coding agents like Claude Code, Cursor, or Codex, instructing them to replicate the analyzed design system in new code. It transforms subjective "design vibes" into exact, actionable specifications.
3. Design Composition "Compose" (Pro Feature): This feature allows users to merge the design systems of two previously saved website scans into a new, hybrid style guide. It technically interpolates values from both sources (e.g., colors from Site A, spacing from Site B) to generate a unified prompt for AI-assisted development, enabling rapid style prototyping.

Problems Solved

1. Pain Point: Eliminates the inefficient, manual workflow of using browser DevTools to painstakingly copy hex codes, pixel-measure spacing, and document type scales when trying to replicate a design. This process is error-prone and time-consuming.
2. Target Audience: Front-end developers, UI/UX designers, product builders, and indie hackers who use AI coding assistants (Claude, Cursor) and need to translate visual references into code specifications quickly. It is particularly valuable for developers building MVPs, creating design system prototypes, or implementing client references.
3. Use Cases: A developer sees a beautifully designed landing page and wants their AI to build a similar one for their project. A designer needs to create a comprehensive style guide from a competitor's site for a client presentation. A team wants to mix the color scheme of one application with the layout density of another to explore new UI concepts.

Unique Advantages

1. Differentiation: Unlike generic color picker extensions or basic CSS viewers, Siteprint provides holistic, structured design system extraction. Compared to manual methods or other AI tools that guess styles, it delivers pixel-perfect, audited values directly from the source code. Its one-time purchase model contrasts with subscription-based design tools.
2. Key Innovation: Its integration of local, precise measurement with AI-agent-ready output is unique. The ability to generate a single, exact prompt that encapsulates an entire page's design logic—from color roles to layout grid—specifically for coding AI, creates a seamless pipeline from visual discovery to code generation. The "Compose" feature for blending designs is also a novel approach to AI-aided style exploration.

Frequently Asked Questions (FAQ)

1. Does Siteprint work with Chrome or on iPhone? No, Siteprint is currently a Safari extension exclusively for Mac computers running macOS 14 (Sonoma) or later. It leverages native Safari and macOS APIs for its measurement functionality.
2. What is the difference between the Free and Pro ($9.99) version? The free version allows design inspection, token export, and use of the Library. The Pro one-time purchase unlocks AI prompt generation, DESIGN.md file export, theme creation, the Compose feature for mixing designs, and direct scan access for configured AI coding agents.
3. Do I need Apple Intelligence to use Siteprint? No, all core measurement and prompt generation features function independently. On Macs equipped with Apple Intelligence, the extension can additionally utilize it to review scans and answer natural language questions about the analyzed design.
4. Can Siteprint build a website for me automatically? No, Siteprint is a measurement and specification tool. It does not generate code itself. Its purpose is to create the precise design brief (the prompt) that you then provide to your AI coding agent (like Claude Code or Cursor), which executes the actual build.
5. How does the "AI reads your scans" feature work? With Pro, you can configure supported AI coding agents (e.g., Claude Code) to directly access your library of saved Siteprint scans via a local API. This allows the AI to reference your collected design systems contextually during development conversations without manual copying and pasting.