Workspace / Product discovery
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A LITTLE CURIOSITY. A LOT OF POSSIBILITY.

Your next idea starts here✦

Explore organic Amazon shirts. Turn real product signals into creative direction.

Amazon.comAmazon-sold novelty shirts·Sponsored excluded · Purchase badge required
✧Connect your updated Spark extension to collect Amazon results, or import your own CSV / JSON.
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Research collection0No products collected yet
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Median BSR—Fetch product details for BSR
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Median price—Visible Amazon list prices
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Median ratings count—Among collected products
Refine your discoveries
Price ($)–
BSR–
Ratings count–
Bought in past month (badge)–
All collected productsAll filters apply together. Monthly counts filter badge thresholds (50+, 100+, 1K+), not exact sales.

Product discovery 0

Your research stays in this browser. No sample products or invented sales.

✦Your curious research companion, Spark

A fresh page for your next big idea.

Search a niche to collect organic Amazon results. Product cards appear first; BSR and product details are collected when you request them.

Amazon results are not proof that a product is Merch on Demand.
Excluded brands & franchises

Matches brand names and title wording. These exclusions do not verify other intellectual property rights.
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Bring Spark to your research.

This workspace connects to the Merch Spark extension in your browser. Amazon does not allow this website to read its pages directly.

  1. Install or update Merch Spark to v3.2.10 or newer. Open chrome://extensions and click Reload on Merch Spark to enable merchspark.io.
  2. Open its settings and click Enable Amazon.com research.
  3. Refresh this website, then click Connect Spark.
Your private extension source ↗

Searches run in the extension background without opening tabs. Only public product fields are returned. If Amazon blocks a request, collection pauses; it will not open a tab automatically. No Amazon Ads API key is needed for public product research. If a search is blocked, open it on Amazon, complete any browser verification yourself, and use Capture open tab.

Your Amazon research source

Your supplied novelty-shirt search is the starting point. Seller and keyword filters are retained when searching niches.

Bring your research with you.

Import CSV or JSON with asin, title, price, rating, reviewCount, bsr, bsrCategory, image, boughtPastMonthLabel. ASIN, title, and boughtPastMonthLabel (such as “50+ bought in past month”) are required. Sponsored or badge-free rows are excluded; unknown fields remain blank.

Imports are browser-local. Data is not uploaded to a server. Imported rows reflect the file you provide, not a fresh Amazon lookup.

A model, not a sales report.

Amazon’s BSR is relative to a category. It does not publish competitors’ unit sales. Enable your own model only when you have a suitable reference for US Clothing, Shoes & Jewelry.

units = reference units × (reference BSR ÷ product BSR)exponent

This is a user-calibrated heuristic, not a validated Amazon sales estimator. The displayed 0.5×–2× band is a scenario range, not a statistical confidence interval. Estimated royalties use your input, not the product owner’s earnings. Non-Clothing ranks are excluded.

Side by side. Clearer choices.