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Shopify Theme Detector: See a Store's Theme and Apps (Free)
Enter a store's address. We read its public home page once and tell you whether it runs on Shopify, which theme it uses and which apps its page loads.
How it works
A Shopify store's page names its theme in a small script (Shopify.theme) and loads each app from that app's own servers. We read those two things from the home page, nothing else, and keep the answer for 7 days. A custom theme shows the name its developers gave it; apps that only run at checkout or on the server are invisible from outside.
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How do I find out which Shopify theme a store uses?
Enter its address above. By hand: open the page source and search for « Shopify.theme »; the name is next to it.
Can it detect every app?
Only the ones that load something on the home page: reviews, email pop-ups, subscriptions, upsells, tracking. Back-office apps leave no trace.
Does it work on non-Shopify stores?
It tells you the store is not on Shopify, and names WooCommerce when it sees it.