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Find book ideas worth publishing. Ranks Amazon suggestions by real demand and competition. No made-up search volumes. KDP Keyword Ranker helps self-publishers decide what book to make next. Type a topic on Amazon and press Rank. The extension asks Amazon for every phrase it suggests for that topic, checks how many books already compete for each one, and scores them. WHAT YOU GET - Every keyword Amazon suggests for your topic, in one table - How many books already compete for each phrase, counted by Amazon - A Demand score and an Opportunity score, 0 to 9, colour coded - Sort by any column - Click any phrase to explore it as its own topic - Export everything to CSV WHAT MAKES IT DIFFERENT We do not invent search volumes. Amazon does not publish them, and nobody outside Amazon has them. Other tools show you a confident number like "9,300 searches a month". That number is a guess. We show you a Search Score instead, and tell you exactly how it is worked out. We also warn you about trademarked brand names. Publishing a book with Disney, Pokemon or Marvel in the title can get your KDP account suspended, even when the book is entirely your own work. We flag those phrases in red. And when a topic is genuinely crowded, we say so and point you at the least crowded corner of it, instead of showing you a green light into a niche with 60,000 competing titles. PRIVACY No account. No login. No sign-up. Nothing is sent anywhere. Everything runs in your own browser and results are saved on your own computer. We never see what you search for. Free to use. No account needed.
Sep 7, 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.