Best KDP keyword and category research tools
Reviewed 2026-11-09. No vendor paid to be listed or ranked. Affiliate links, where they exist, are marked.
Which tools are best for researching KDP keywords and categories?
Publisher Rocket ($199 once) covers keyword search, category search and Amazon Ads keywords; KDSPY ($79 once) shows category and keyword estimates while you browse Amazon; BookBeam (from $47 a month) adds history, rank tracking and trademark checks. Amazon's Best Sellers lists are the free first-party baseline, and Manuscript Report researches a finished manuscript for $69.
How we chose
- Built for books, or clearly useful for KDP's seven keyword slots and three categories
- Labels estimates and says where its numbers come from
- Price checked on the vendor's page
- Covers Amazon's Books and Kindle stores, not only product categories
Facts behind each pick (price, platforms, KDP fit) come from the listing pages, which cite their sources. See the methodology.
The picks
1. One-time keyword and category research
Publisher Rocket
Keyword search, category search across 19,000+ categories, a competition analyzer and an Amazon Ads keyword generator across eight stores, for $199 once with a 30-day refund. Made by the founder of Kindlepreneur.
$199 one-time · Checked 2026-11-09 · Visit site
2. Research while you browse Amazon
KDSPY
Category breakdowns with estimated revenue and sales needed to rank, keyword and competitor analysis, and 30-day tracking, for $79 once with a 60-day refund. Desktop browsers only.
$79 one-time · Checked 2026-11-09 · Visit site
3. Research plus ongoing tracking
BookBeam
Keyword and niche research, category history, book and keyword-rank tracking and a USPTO and EUIPO trademark checker. From $47 a month or $29 billed yearly, with a free Chrome Extension Lite.
From $47/mo · Checked 2026-11-09 · Visit site
4. Free first-party baseline
Amazon Best SellersOfficial Amazon
The top 100 and Hot New Releases for every category, straight from Amazon. Rank only, so pair it with a tool that estimates sales.
Free · Checked 2026-11-09 · Visit site
5. Research for one finished manuscript
ManuscriptReport
Upload a manuscript and get category suggestions, seven backend keyword fields with search estimates and comparable titles for $69 per book. Much of the copy is AI-written, so edit it.
$69 one-time · Checked 2026-11-09 · Visit site
Considered, not picked
- KDPTop: Run by the same team as kdp123, so we leave it out of our own ranking. Its listing shows what it does and costs.
- Helium 10: Most of the price pays for physical-product seller tools, and it is reported to return little keyword data for Kindle ebook ASINs.
- Data Dive: Groups keywords well, but has no book-specific features and assumes a Seller Central account.
Every listing in this area: Keywords & Categories.
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