One click on a store you are visiting: the platform, the theme and its version, the apps and pixels on the page, the store's public facts, and how fast it really loads for its visitors. For merchants, agencies, freelancers, developers and anyone who writes about e-commerce.
The Chrome Web Store listing is in review. This page will carry the install link the day it is approved.
34platforms recognised
0accounts, tokens or ads
14languages
1click
A Shopify store built on Dawn 10, fifteen releases behind, with its real-user speed and the 19 services its page loads.
What you see
Six cards, all of them from public data.
Store Lens reads the page in front of you and the store's own public JSON. It never guesses sales or traffic, and it says where every number comes from.
Platform, with evidence
Shopify, WooCommerce, BigCommerce, Magento, Salesforce, Shopware, PrestaShop, Squarespace, Wix and 25 more, told apart by their own asset hosts and markup. Headless storefronts are named as headless, not "unknown".
Theme, version, releases behind
On Shopify: the theme the store was really built on, its version, whether it came from the Theme Store or is an edited copy, and how many releases it has missed. On WordPress: theme, version, author and parent theme from the theme's own header.
Real speed, and this visit
The Chrome UX Report's real-user LCP, INP and CLS for the store, next to what your own visit measured: first byte, page weight, scripts, images, third-party hosts. One line says whether the slowness is the theme or what sits on top.
Services on the page
Payments, reviews, email and SMS, pixels and analytics, chat, page builders, subscriptions, loyalty, consent, accessibility overlays, testing tools. Around 150 services recognised by their own script hosts, plus every Shopify app embed.
WordPress plugins, with their Shopify equivalent
On a WooCommerce store, every plugin the page loads, and for the 88 in our plugin map what it would be on Shopify: built in, an app, Plus only or nothing, with the migration risk.
Store and product facts, and a report to paste
Product and collection counts, currency, shipping countries, languages, Shop Pay; on a product page its price range, variants, stock and review schema. Copy the whole thing as Markdown for a proposal, an audit or an article.
WooCommerce: the theme's header, the plugins, and what each becomes on Shopify.Real-user speed from the Chrome UX Report next to your own visit, with the verdict.A headless storefront is named as one, because there is no theme to report.
Why the answer is right more often
Three facts instead of one name, and code when the name lies.
Most detectors print the label a merchant typed into the admin, or call every theme without a Theme Store number "custom". Both are wrong on serious stores. Store Lens reads what a rename cannot change.
The schema name, not the label
A Shopify store publishes schema_name and schema_version, the theme it was built from and the version it was built from. The admin label ("Copy of Black Friday", "Release 2026-S-2") is shown separately as what the store calls it.
Theme Store number means bought there
theme_store_id is set only for a Theme Store install. Without it the theme is an edited copy or a custom build, which gets no update notices in the admin. Store Lens says which, instead of collapsing both into "custom".
Code fingerprints for renamed schemas
When a developer overwrote the schema name too, the theme's own script and stylesheet file names are compared with the code of every Theme Store theme, read from the themes' demo stores. A clear match is shown with its confidence; an unclear one is called custom.
Releases behind, from the release notes
The installed version is set against the theme's release history on the Theme Store, so "Dawn 10.0.0" becomes "15 releases behind, latest 16.0.0" with what changed since. Nobody else shows this.
Extension
Platforms
Renamed theme
Real-user speed
Account or limit
Store Lens
34, with headless
Schema name, Theme Store number and code fingerprints, evidence shown
Yes, Chrome UX Report, plus this visit
None. Free, no ads
Koala Inspector
Shopify
Reads the visible name
No
15 lookups a month free, then $22 a month
PPSPY
Shopify
Disputed
No
Free tier, $9 to $29 a month
Wappalyzer
Any
Does not name the theme reliably
No
50 lookups a month free, then $250 a month
BuiltWith
Any
No theme detail
No
Free extension, paid data from $295 a month
Prices and limits as published by each vendor on 28 September 2026. Ratings, user counts and the complaints behind each row are in our FAQ and the studio's market notes.
Every platform people sell on
Not only Shopify.
An agency serves WooCommerce, Shopify and BigCommerce clients in the same week. Store Lens works on all of them, and says when a page sells on something it does not know.
Shopify
Shopify Hydrogen and headless
WooCommerce
WordPress
BigCommerce
Adobe Commerce (Magento)
Salesforce Commerce Cloud
Shopware
PrestaShop
Squarespace
Wix
Webflow
Ecwid
Lightspeed
VTEX
Nuvemshop
Shopline
Shoplazza
Salla
Zid
Big Cartel
Square Online
Shift4Shop
Volusion
OpenCart
nopCommerce
Saleor
Medusa
Swell
commercetools
Sylius
ikas
Ticimax
IdeaSoft
Privacy
Runs in your browser. One optional lookup, and you can switch it off.
What stays in your browser
The page you are looking at and the store's public JSON, read by the extension on the spot.
No history of the stores you check, no cookies, no account, no identifier of you.
The extension asks Chrome for the page only when you click its icon (the activeTab permission), never in the background.
What the studio lookup sends, when it is on
The store's address, its theme name and version, and for a renamed theme its script and stylesheet file names. The answer is the theme's release notes and the store's real-user speed.
We count lookups by country and language with a key that changes every day, so we know how many people use Store Lens and nothing about who. Details in the privacy page.
Switch it off in the extension's settings and nothing leaves your browser at all.
Questions
Frequently asked
Which platforms does Store Lens recognise?
Shopify (themes, headless Hydrogen and other headless storefronts), WooCommerce and WordPress, BigCommerce, Adobe Commerce (Magento), Salesforce Commerce Cloud, Shopware, PrestaShop, Squarespace, Wix, Webflow, Ecwid, Lightspeed, VTEX, Nuvemshop, Shopline, Shoplazza, Salla, Zid, Big Cartel, Square Online, Shift4Shop, Volusion, OpenCart, nopCommerce, Saleor, Medusa, Swell, commercetools, Sylius, ikas, Ticimax and IdeaSoft. A store on anything else is reported as a custom storefront when the page sells.
How does it find a Shopify theme that was renamed?
It reads the theme's schema name and version, which a rename does not change, and shows the admin label separately. When a developer overwrote the schema name too, the theme's own script and stylesheet file names are compared with the code of every Theme Store theme, and the match is shown with its confidence.
Where does the speed data come from?
Two places. Real-user speed is the Chrome UX Report's 75th percentile for the store's phone visitors over 28 days, the same data Google Search uses. This visit is measured in your own browser: time to first byte, largest contentful paint, layout shift, page weight, scripts, images and third-party hosts. Small stores often have no real-user data yet; the extension says so instead of inventing a score.
Does Store Lens estimate sales or traffic?
No. It shows only what the store publishes: product and collection counts, currency, shipping countries and languages. Sales estimates are the most complained-about feature of store spy tools, so Store Lens leaves them out.
What does the extension send anywhere?
With the studio lookup on, it sends the store's address, the theme name and version, and for a renamed theme its asset file names, to studio.mufatech.com, which answers with release notes and real-user speed. Turn the lookup off in settings and nothing leaves your browser. There is no account and no history.
Does it work on password-protected or headless stores?
A password page hides the theme, but the store's public facts still show. A headless storefront on Shopify is named as such, with the framework when it can be told, because there is no theme to report.
Something is wrong or missing. Who do I tell?
The speech bubble in the extension's footer opens a short form that reaches the people who build Store Lens; we answer by email, usually within a day. Or write to [email protected]. A wrong platform or a missing service is usually fixed in the next release.
1.0.0First release: 34 platforms, Shopify and WordPress themes, code fingerprints, real-user and visit speed, about 150 services, WooCommerce plugin map, store and product facts, Markdown report, 14 languages.
