Why does the generic extractor work on some stores and not others?

It reads Schema.org product markup. Stores that publish complete structured data extract cleanly; stores that render prices purely in JavaScript with no markup do not.

Can I monitor a price over time with these?

Not on their own — each run is a snapshot. You would need to run the extractor on a schedule and store the results yourself.

Does the Shopify scraper work on any store?

It works on stores that expose the standard Shopify product endpoints, which most do by default. Stores on Shopify Plus with a custom storefront may not.

Free Tools

Free E-Commerce Tools

Get product data out of storefronts without an API: scrape Amazon listings and Shopify catalogues, extract structured product details and review summaries from any product page, or look up a barcode.

E-Commerce

Amazon Scraper

Extract product details, prices, ratings, and reviews from Amazon across 20+ countries.

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E-Commerce

Shopify Scraper

Extract product catalog, pricing, variants, and store info from any Shopify store. Supports store-wide and single product scraping.

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E-Commerce

Product Schema

Extract structured product data from any e-commerce page — Schema.org, JSON-LD, prices, ratings, and availability.

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E-Commerce

Review Scraper

Extract product reviews, ratings, aggregated scores, and rating distribution from e-commerce and review pages.

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E-Commerce

Barcode

Look up product information by barcode or UPC using Open Food Facts and UPCitemdb.

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Which E-Commerce tool should you use?

For a single product page, the Product Data Extractor works across most storefronts because it reads structured data rather than platform-specific markup — start there. Use the Amazon and Shopify scrapers when you need platform-specific fields the generic extractor cannot see, such as variant inventory or catalogue-wide listings. The Review Summary Extractor is for aggregate signal, not individual reviews: rating distribution tells you more about a product than the top review does.

E-Commerce tools — common questions

Why does the generic extractor work on some stores and not others?: It reads Schema.org product markup. Stores that publish complete structured data extract cleanly; stores that render prices purely in JavaScript with no markup do not.
Can I monitor a price over time with these?: Not on their own — each run is a snapshot. You would need to run the extractor on a schedule and store the results yourself.
Does the Shopify scraper work on any store?: It works on stores that expose the standard Shopify product endpoints, which most do by default. Stores on Shopify Plus with a custom storefront may not.

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