# Estimatik > AI-powered resale value estimator for the US secondhand and flipping market. Estimatik helps resellers, thrifters, and estate sale buyers instantly estimate the resale value of any item using a photo. Users upload an image, and the tool returns a price estimate based on real eBay sold listings, powered by GPT-4o and the eBay Browse API. ## What Estimatik does - Accepts a photo of any secondhand item (clothing, electronics, collectibles, furniture, etc.) - Identifies the item using AI vision (GPT-4o) - Queries real eBay sold listings to determine actual market value - Returns a resale price estimate with condition-based context - Supports WebP, JPEG, and PNG image formats - Works across all item categories — not limited to specific niches ## Who it is for - Resellers and flippers sourcing items at thrift stores, garage sales, and estate sales - eBay and Poshmark sellers wanting a quick price check before listing - Anyone who wants to know if an item is worth selling before buying it ## How to use it Go to https://estimatik.com, upload a photo of the item, and receive an instant AI-powered price estimate. No account required to try. ## Pricing Estimatik is currently free to use. Paid plans are in development. ## Technology - Built with Next.js, deployed on Vercel - Uses GPT-4o for item identification and price reasoning - Uses the eBay Browse API for real sold listing data - Authentication and usage tracking via Supabase ## Links - Homepage: https://estimatik.com - Product Hunt: https://www.producthunt.com/products/estimatik - Lemon Squeezy store: https://estimatik.lemonsqueezy.com ## Contact Made by Messaoud Berrabah — solo founder based in France.