According to AlphaMoat, as of 2026-08, the Chrome extension Design Copilot has 296 users (+0% MoM), rated 4.2 (5 reviews) — ranked #2,744 of 9,793 AI browser extensions, and #139 of 445 in Image & Design.
Design Copilot (UI Copilot) is an AI-powered design feedback tool that captures any portion of a webpage and provides instant design suggestions. It uses Google Gemini LLM models (Pro and Flash) to analyze screenshots and deliver feedback on layouts, color schemes, typography, and more. Users bring their own Gemini API key, making the extension completely free during the beta period.
The extension is completely free during the Beta period, offering almost unlimited feedback requests. Users bring their own Google Gemini API key to use the service at no cost. PS=True triggers this Business Model section.
AI powered design feedback on any website. Your personal design copilot. 📷 Capture Screen --> Design Feedback (Powered by AI!)
✅ Activate the extension 📷 Click the "Capture Screen" button 👇 Drag and release to draw the area to capture 🤖 Receive instant AI design feedback for the website
Key Features: 🔑
How It Works: 🔮
Who is it for? 🧙
Whether you're a professional designer looking for a second opinion, a developer wanting to enhance your UI skills, an entrepreneur, or just curious about good design practices, UI Copilot is your personal design assistant for the web.
Completely free! 💸
UI Copilot is completely free during our Beta period, offering almost unlimited feedback requests. Take advantage of this opportunity to refine your designs and boost your UI/UX skills without any cost! Your early feedback is critical in shaping the roadmap of the tool. The tool uses the powerful Google Gemini LLM models (Pro and Flash)!
Secure Always: 🛡️
Personal API Keys are stored in your Browsers Sync Storage, accessible only to this extension. The key is only used to perform API calls to the Google Gemini LLM service. Without this special step, the extension can't work! By bringing your own API Key, we are able to offer this extension at no cost to you, and operating within the rate limits of the LLM models!
Upgrade your design intuition and create better user experiences with UI Copilot - your AI-powered design partner, available anytime, anywhere on the web.
Install UI Copilot today and start receiving expert design feedback on any website or web application!
Changelog
0.4.1-beta:
0.3.1-beta
Edit photos, make collages, and design layouts with one-tap A.I. tools and templates.
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+ CompareData month: 2026-08 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.