KDPTop - Book Sales & KDP Research

Estimated sales, revenue and BSR on Amazon book pages, search and Best Sellers insights, plus KDP category & keyword tools.

Know what a book really sells before you write your next one. KDPTop puts sales estimates and niche research on every Amazon page a self-publisher uses: book pages, search results, Best Sellers lists, author pages and the KDP title setup. Built for Amazon KDP authors of low-content and activity books, children's books, fiction and nonfiction. ON AMAZON BOOK PAGES: ONE CARD, FIVE TABS • Overview: estimated monthly units, revenue and BSR; author, publisher (indie or publisher), publication date, pages, file size, category ranks, prices per format, Kindle Unlimited, series, A+ • Keywords: the top 10 search terms sending buyers to the book, with monthly searches, and which ones are in the title • Author: all works, books on lists in the last 30 days, new books and breakouts, estimated monthly revenue and the latest books • Category: each category rank mapped to an opportunity score, market tags and a Go / Watch / Skip verdict • AI analysis: positioning, why it sells, what to learn, how to differentiate, risks • Add the book to a research project or follow it; every author, category and book links to its full KDPTop analysis page ON BOOK SEARCH RESULTS • Search insight: monthly searches, growth, purchases, competing results, average price and reviews for the search term, plus what page one earns (page revenue, median sales, BSR, price, reviews, share of new and indie books) and a demand / competition verdict • Books tab: every book on the page in one sortable table with BSR, monthly units and revenue, reviews and price; export to CSV • Keywords tab: the phrases titles on the page repeat, and related search terms with their monthly searches • Main categories behind the search, each with its opportunity verdict ON BEST SELLERS, NEW RELEASES AND MOVERS & SHAKERS • List insight: the category's verdict, median price and reviews, top-100 median daily sales, page revenue and share of new books; follow the category in one click ON EVERY BOOK IN SEARCH AND LIST RESULTS • A badge with monthly units, monthly revenue, BSR, reviews and rating, pages, publication month, indie / publisher tag, book type and the book's best list rank • Links straight to the author's and the book's KDPTop pages ON AMAZON AUTHOR PAGES • An author panel: books published, recent activity, new books and breakouts, estimated monthly revenue and profile tags WHILE YOU PUBLISH ON KDP • A KDPTop drawer on KDP pages with three tools • Categories & keywords: category paths that fit your book, with a fit score, copy buttons and a link to each category's analysis; 7 backend keyword phrases from real Amazon search data, filled into all 7 slots in one click (other authors' names and trademarks are filtered out) • Royalty calculator: paperback, hardcover and eBook royalties and print cost from your price and page count • Cover calculator: full cover and spine size for your trim size, page count and paper DATA SHARING (OPTIONAL, OFF BY DEFAULT) • When you turn it on, only public Amazon product and list information is shared so the catalog grows and lists refresh faster for everyone: never your account, address, orders, cart or search terms, and nothing from KDP • Free users who contribute enough get +1 full category and +2 AI analyses a day HOW IT WORKS 1. Install the extension. 2. Sign in to kdptop.com (a free account works) and click "Connect extension". No API key to copy. 3. Browse Amazon as usual. Estimates come from KDPTop's daily tracking of Amazon Best Sellers lists and book pages and a BSR-to-sales model. They are estimates, not Amazon data, and do not include Kindle Unlimited page reads. Free accounts include a daily allowance; paid plans raise it. Privacy: the extension runs only on www.amazon.com, kdp.amazon.com and kdptop.com. By default it sends the ASIN, BSR, price and category ids shown on the page to kdptop.com; on a book search page it also sends the search term to look up its demand (used only for that request); on KDP, the title text you enter when you click Suggest. Only if you turn on Data sharing does it send the public product and list fields listed in the privacy policy. It does not read your browsing history, your Amazon or KDP account, or your sales reports. Full policy: https://kdptop.com/privacy KDPTop is not affiliated with Amazon. Amazon, Kindle and KDP are trademarks of Amazon.com, Inc.