extensionhub.app · Developer Tools
1 item
Score product categories for whitespace using competition, review saturation, and demand gap analysis before adding inventory. Deciding whether a category is worth manufacturing into usually comes down to gut feeling after browsing a few listings. This extension turns that browsing into a structured, weighted score — competition density, review saturation, and real qualitative signals like recurring complaints and price gaps. Features: Instant 0–100 whitespace score from listing count and average reviews Four weighted qualitative signals: complaints, price gaps, outdated listings, thin supply vs. demand A visual gauge showing exactly where a category lands A ranked pipeline of every category you've assessed, best opportunities first Pro: unlimited pipeline, CSV export Nothing connects to Amazon or any paid data source — you research the category yourself, and this structures your findings into a consistent, repeatable score.
Jul 10, 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.