Product Data Extractor — Competitor Price & Stock Tracker

Track competitor prices and stock on any Shopify, WooCommerce or BigCommerce store. Change alerts, price history, CSV export.

Extract product data from any online store in one click — then track prices and stock automatically. Product Data Extractor turns any product page into clean, structured data: name, current price, original price, currency, availability, brand, SKU, GTIN/barcode, rating, review count, images and per-variant prices. No account, no subscription, no server. ——— EXTRACT ——— • One click on any product page — nothing to set up • Reads the structured data stores already publish (Schema.org JSON-LD, Open Graph meta tags, microdata), which covers Shopify, WooCommerce, BigCommerce, Haravan and most of the web • Hand-built themes that publish nothing: falls back to reading the price shown on the page, so you still get a number without configuring anything • Sale price vs. original price, stock status, ratings and variants • Every field viewable as raw JSON, for developers and spreadsheet users ——— TRACK ——— • Hit "Watch price & stock changes" on any product you want to follow • It re-checks in the background on your schedule: hourly, every 6 hours, every 12 hours, or once a day • A Chrome notification the moment a price moves or an item goes out of stock • A price history chart for every product you follow ——— EXPORT ——— • One click exports everything you track to CSV • Columns: name, URL, currency, current price, previous price, availability, last checked, tracked since • Ready for a spreadsheet, a repricing sheet, or your own report ——— YOUR DATA STAYS YOURS ——— • No sign-up and no account • Tracked products and price history live in your browser's local storage and nowhere else • The extension asks permission to read a site only when you choose to track a page on it — that permission is what lets the background re-check run while the tab is closed • Prices are read from what stores publish publicly. Nothing is logged. ——— OPTIONAL AI READING ——— For unusual page layouts you can add your own Anthropic API key and have AI read the page instead. Entirely optional, off by default, and the key stays in your browser — it is sent only to Anthropic's API. Everything above works without it. ——— GOOD TO KNOW ——— • Works on a product's own page, not on category, search or cart pages • Reload a tab once after installing — the extension can't read tabs that were already open • Some stores load the price a moment late; give it a second and click again Found a store it can't read? There's a "Report this page" button in the popup — it sends just that page's URL, only when you click it, and it's how support for new stores gets prioritised.