FreeChrome extension for Shopify stores · OnPromptAds Store Spy
See what any Shopify store sells best.
Store Spy opens on any Shopify store and shows its best sellers, new launches, prices, theme, apps and ad pixels. Hover any product image to remix it into ads for your own store.
Free · no limitsWorks on every Shopify storeThen Remix in OnPromptAds
Fictional store and products, made with OnPromptAds.
Hover any product image. Remix it into ads in one click.Products, new launches, prices, discounts and launch cadence.Best sellers, newest and highest priced. Export to CSV.Every app and theme the store runs, grouped by category.Which ad pixels they run, and their ads in one click.
Set up in a minute
Add it. Open a store. Remix what sells.
Add it to Chrome
Free, no account needed to inspect stores.
Open any Shopify store
The Store Spy button appears at the bottom right of every Shopify store.
See what sells
Best sellers, new launches, prices, theme, apps and ad pixels. Export the catalog to CSV.
Remix it
Hover a product image and click Remix to turn it into ads for your store in Brands.
Install from Chrome Web Store
Open the Store Spy listing on the Chrome Web Store
Click Add to Chrome
Open any Shopify store and click Store Spy at the bottom right
Find the ad with Ad Spy. Open the store with Store Spy.
Ad Spy finds Shopify ads in Meta Ad Library and shows how long each has run. Store Spy shows what that store sells best. Both are free and both remix straight into OnPromptAds Brands.
Yes. Store Spy is free with no limits on stores or products. CSV export asks for your email once, verified with a 6-digit code. Turning products and competitor ads into your own ads happens in OnPromptAds Brands, which has a free start with no card required.
From the store itself. Every Shopify store publishes its catalog, theme and store details on public endpoints such as /products.json and /meta.json. Store Spy reads those directly from the store in your browser. Best sellers come from the store's own best-selling sort order.
No. Revenue and traffic numbers in other tools are guesses. Store Spy sticks to signals you can trust: catalog size, launch cadence, prices, discounts, best-selling order, apps and ad pixels.
It opens the product image and product link in OnPromptAds Remix, which studies the image and writes new ad concepts, images and videos for your own product.
No. On sites that are not Shopify stores the extension stops right away. Store data stays in your browser. See the Store Spy privacy policy for details.
No. OnPromptAds Store Spy is independent and not affiliated with Shopify.
Ad Spy works inside Meta Ad Library and finds Shopify ads. Store Spy works on the Shopify store itself. Use both: find a winning ad with Ad Spy, then open the store with Store Spy to see what sells.
Every Shopify store is now an open book
Free to add. See what sells, then remix it into ads for your own store.
