See your profit before you sell it

SellerScope is a free Chrome extension that shows net profit after fees, margin, ROI and break-even — plus product-research signals — right on any Amazon, Etsy or AliExpress product page. No spreadsheets.

Launching soon on the Chrome Web Store. Get early access — we'll email you the moment it's live. One email, no spam.

SellerScope panel showing net profit, margin and research signals on an Amazon product page

What it does

💰 Profit after feesEnter your cost — instantly see net profit, margin, ROI and break-even price for the item on screen.
🔎 Research signalsRating, review count, and on Amazon the Best Sellers Rank with a rough monthly-sales estimate.
🔒 Private by designNo sign-up, no tracking, no servers. Everything is calculated in your browser and stays on your device.

How it works

  1. Install the free extension.
  2. Open any product on Amazon, Etsy or AliExpress.
  3. Click the SellerScope button — the price is detected automatically; type your cost and read your real profit.

Who it's for

FAQ

Is it free?
Yes — the profit calculator and research signals are free. A Pro tier (saved products, CSV export, more marketplaces) is coming later.
Does it collect my data?
No. SellerScope makes no network calls and sends nothing to any server. Your inputs stay in your browser. See the privacy policy.
Are the fees and sales numbers exact?
Fee %s are editable estimates — set them to your exact category. The sales estimate is a directional guide from Best Sellers Rank, not an exact figure.
Is there a web version I can try first?
Yes — run the numbers in your browser with the free Amazon FBA fee & profit calculator before you install the extension.

Stop guessing your margins

Be first in line — get an email the moment SellerScope goes live.

Get early access →