Best Ecommerce Chrome Extensions (2026)

Best ecommerce Chrome extensions

An ecommerce Chrome extension helps store owners and dropshippers research competitors, find products and analyze Shopify stores without leaving the browser. Our top pick is Koala Inspector: it has a free plan and shows any Shopify store's theme, installed apps and likely bestsellers directly on the storefront you're viewing.

Last reviewed September 26, 2026 · 2 listings · Independent, not affiliated with Google

Running or researching an online store involves a lot of manual digging: checking what theme a competitor uses, which apps power their store, and which products are actually selling. Ecommerce extensions surface that information as an overlay on the storefront itself, saving you from guesswork or paid research tools for basic checks.

Inspect a competitor's Shopify store

Koala Inspector reveals the theme, installed apps and traffic-related signals of any Shopify store you visit, all from a single click. This is useful before launching a similar store, choosing a theme, or deciding which apps are worth trying, based on what's already working for stores in your niche.

Find winning products for dropshipping

PPSpy focuses on identifying products and stores worth watching, aimed at dropshippers researching what to sell next. It surfaces store and product data while you browse, which speeds up product research compared to manually checking each competitor's catalog and reading reviews one by one.

What these tools can't tell you

Store inspector extensions estimate signals like likely bestsellers and app usage; they don't have access to a store's actual sales data or private analytics. Treat their output as a research starting point, not a guarantee, and validate any product idea with your own market research before committing budget.

Best ecommerce Chrome extensions: FAQs

What is the best Chrome extension for ecommerce?

Koala Inspector is a strong starting point because its free plan reveals a Shopify store's theme, apps and likely bestsellers. PPSpy is a good complementary pick for dropshippers focused on product research.

Can store owners use Koala Inspector for free?

Koala Inspector offers a free plan covering basic store inspection, with paid plans unlocking deeper features. Check the current listing for exactly what the free tier includes.

How do I find what apps a Shopify store uses?

Install a store inspector extension like Koala Inspector, visit the store, and open the extension's icon to see a list of detected apps and the theme in use, without viewing the store's page source manually.

Can these extensions see a store's real sales numbers?

No. They estimate likely bestsellers and popularity from public signals like product placement and reviews, not from private sales data. Use them as a research signal rather than an exact figure.

What is PPSpy used for?

PPSpy is aimed at dropshippers researching products and stores to sell, surfacing store and product information while browsing to speed up finding potential winning products.

Are ecommerce spy extensions safe to use?

These extensions generally only need access to the storefronts you visit to analyze publicly visible page data. Avoid any variant that requests your own store's admin credentials or unrelated broad permissions.

Do ecommerce extensions work on platforms other than Shopify?

Most well-known store inspector extensions, including Koala Inspector, are built specifically for Shopify stores. Check an extension's listing before assuming it supports other platforms like WooCommerce.

Is it legal to use a competitor research extension?

Viewing publicly available information about a competitor's storefront through a browser extension is generally legal. It differs from scraping private data, which these tools don't access.

How accurate is bestseller data from these extensions?

It's an estimate based on visible signals such as product page positioning and review counts, not confirmed sales figures. Accuracy varies by store, so use it to prioritize research, not as a final decision.

Can I use these extensions to research my own store?

Yes, some sellers use them to see how their own store appears to the inspection tools competitors might be using, though you'll get more accurate data from your own Shopify admin analytics.