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Case study

Handmade Checker

A Chrome extension that detects AI-generated listings on Etsy using AI-powered analysis.

  • Next.js
  • Supabase
  • Stripe
  • Chrome Extensions API
  • AI/LLM Analysis
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Handmade Checker

The Problem

Etsy’s marketplace is built on the promise of handmade goods. But as AI-generated images and product descriptions become more convincing, shoppers can no longer trust what they see. Listings that look handmade might be AI-generated storefronts with no actual craftsmanship behind them.

Existing solutions required manual inspection and expertise. Most shoppers simply had no way to know.

The Approach

I designed Handmade Checker as a complete ecosystem with three integrated parts:

Chrome Extension

The extension injects a “Check Listing” button directly into Etsy’s product pages. One click sends the listing data (title, description, and main image) to my analysis backend that uses Google Gemini and returns a clear, actionable verdict.

Website

A Next.js site (handmadechecker.com) serves as the storefront, handling:

  • Landing page with feature overview and testimonials
  • Pricing page comparing Free vs Pro tiers
  • Chrome Web Store install funnel
  • Blog for SEO and user education

Key Results

  • Scalable credit system preventing abuse while keeping the free tier viable
  • Freemium model with real conversion to paid subscriptions