KDP Radar - 2026 Pricing, Features, Reviews & Alternatives

KDP Radar is a browser-based niche research and keyword analysis application designed for Amazon Kindle Direct Publishing self-publishers. The platform enables authors and publishing professionals to identify profitable market niches, evaluate competitive landscapes and validate reader demand prior to book development. The target users include low-content publishers, independent authors, small publishing houses and bilingual publishers focused on English and Spanish-language markets within Amazon’s global ecosystem. The software functions independently and does not require integrations with third-party services or application programming interfaces.

The solution offers five research modules driven by live data from Amazon. The Niche Finder tool produces opportunity scores, competition classifications, sales volume estimates and detailed metrics for the top ten competing titles based on user-entered keywords. The Keyword Research module retrieves autocomplete suggestions from Amazon and estimates Best Seller Rank trends via review count analysis to project daily sales rates. The Amazon Standard Identification Number lookup feature delivers real-time performance metrics for any book, including ranking data, sales estimates, list price, customer ratings and publication details. The Book Finder option filters the Amazon book catalog by rank range, review count, price, star rating and publication date with sortable results and exportable data. The Reverse Keywords function extracts the actual search terms used by competing titles and displays corresponding search volume and competition metrics.

Additional capabilities include a Royalty Calculator that computes exact earning estimates for ebook, paperback and hardcover formats across regional marketplaces and pricing structures. The Saved Research workspace retains an unlimited number of books and niche analyses with persistent access across sessions and supports data export in comma separated values format. The platform provides Spanish-language keyword research support for market analysis, demand validation and competitor keyword extraction alongside support for German, French, Italian and Portuguese marketplaces. All modules operate without usage limits or search caps to facilitate uninterrupted research workflows.

The application is delivered entirely via web browser without requiring browser extensions or plugin installations. This design approach removes permission requests, installation steps and compatibility issues related to browser updates while enabling access on any internet-connected device. The software extracts information directly from Amazon’s public marketplace listings and autocomplete services and delivers insights through a standalone interface.