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Free Amazon KDP research: discover keywords, compare books and estimate royalties directly on Amazon. Know your market before you publish. MyAuthorSuite Search Tool is a free browser extension for independent authors and Amazon KDP publishers. Discover keyword ideas, compare competing books and estimate royalties right inside Amazon search results and book pages. Make your next book idea easier to research: - Discover related keywords from Amazon suggestions and compare them using a relative popularity score. - Assess a niche at a glance with exact matches, sponsored listings, prices and Amazon Best Sellers Rank (BSR) summaries. - Spot relevant titles with keyword highlighting and use the KDP filter to focus on books detected as independently published. - Check books published in the last 30 and 90 days among the date-sorted results analyzed, with BSR figures when available. - Inspect a book’s ASIN, BSR, publication date, reviews and price. Copy individual ASINs or copy result-page ASINs that have a BSR, sorted by rank. - Estimate royalties for paperbacks, hardcovers and ebooks detected as KDP titles, when the required data is available. - Save product videos and customer review videos from supported Amazon product pages to revisit later. Six Amazon marketplaces, one familiar workflow Works on Amazon.com, Amazon.co.uk, Amazon.it, Amazon.de, Amazon.fr and Amazon.es. The interface is available in English, Italian, Spanish, French and German. Research uses the marketplace you are browsing. Free, with no MyAuthorSuite account required The extension retrieves suggestions and product data from Amazon and processes them in your browser. It does not collect personal data, search history or usage logs. You can clear locally cached product data in the settings. Understand the numbers Keyword popularity is a relative indicator, not a search-volume measurement. Publication counts cover the results analyzed. KDP detection and royalty estimates depend on the available book data; check the actual publishing and format details before relying on them. Estimated royalties are not total profit or a guarantee of sales. Video downloads depend on the formats Amazon provides. Install MyAuthorSuite Search Tool, open Amazon and start with a keyword. Learn more: https://www.myauthorsuite.com/ Support: support@myauthorsuite.com MyAuthorSuite Search Tool and its creators are not affiliated with, endorsed by or sponsored by Amazon.
Sep 23, 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.