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Spot newly added Amazon products with active BSR and public demand signals. Merch Radar puts the research data you need directly on Amazon — on every search result card and product page, while you scroll. WHAT YOU SEE ON EVERY SHIRT • BSR (Best Sellers Rank) graded HOT / STRONG / ACTIVE / SLOW • Exact date added to Amazon, plus its age • Sales signal — Amazon's public "bought in past month" when available (tagged AMAZON), otherwise a BSR-based estimate clearly tagged EST • Views signal — Amazon's public "viewed in past week" when shown • Rating and review count • One-click ASIN copy and full-resolution design download OPPORTUNITY RADAR Three-level labels computed from age + BSR: NEW BREAKOUT, NEW & SELLING and SELLING. You choose what "new" means — 15, 30, 90 days or this year. SPONSORED ADS, NEUTRALIZED Sponsored results are blurred and flagged AD so organic signal stands out. Click 👁 SHOW to reveal any ad. Toggleable. SAVED CATALOG WITH COLLECTIONS Hit ☆ SAVE on any breakout shirt — mockup, title, price, BSR, date, sales and reviews land in a local catalog. Group shirts into collections, filter, sort, download designs and export CSV. MAKE IT YOURS Every surface is a toggle. Five accent themes, synced across your devices. PRIVATE BY DESIGN • No account, no login, no seller-account access • Public Amazon data only — the same pages you can see yourself • Nothing leaves your browser: saved shirts live in Chrome storage • No analytics, no tracking, no third-party servers Works on 9 marketplaces: US, UK, DE, FR, IT, ES, CA, AU, JP. Sales estimates marked EST are research signals derived from BSR, not guarantees. Merch Radar is not affiliated with Amazon.
Jul 29, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.