BKLNKbklnk.com
FreeFree Amazon category/keyword browsing tools.
Web
KDSPY alternatives
16 keyword & market research tools for self-published authors, similar to KDSPY. Compare pricing and platforms, then pick what fits your workflow.
Book Boltbookbolt.io
SubscriptionAll-in-one KDP research + low-content interior/cover design.
Web
Book Bolt extensionbookbolt.io
SubscriptionLive KDP data overlay on Amazon.
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BookBeambookbeam.io
SubscriptionAll-in-one research, optimization & analytics for Amazon self-publishers.
Web
DS Amazon Quick View(Chrome Web Store)
FreeOverlays BSR/ASIN/data on Amazon listings.
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Grammarlygrammarly.com
FreemiumReal-time grammar/spelling across 500k+ apps; browser extension.
Helium 10helium10.com
FreemiumDeep Amazon data suite (built for product sellers, adaptable to books).
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Jungle Scoutjunglescout.com
SubscriptionAmazon product/keyword research.
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K-lyticsk-lytics.com
SubscriptionGenre market-research reports on viability/trends.
Web
Keepakeepa.com
FreemiumAmazon price-history and sales-rank tracking.
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ManuscriptReportmanuscriptreport.com
PaidKeyword + 16 marketing assets (comp titles, blurbs, audience profiles).
Web
Publisher Rocketpublisherrocket.com
FreemiumAmazon keyword/category/competition + Reverse ASIN research.
MacWindows
Publishing.aipublishing.com
SubscriptionAI demand-research + book generation for KDP.
AIWeb
ScribeCount extensionscribecount.com
SubscriptionBrowser extension feeding multi-platform sales dashboard.
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Scrivyscrivy.co
FreemiumThe growth desk for self-published KDP authors: ARC reviews, daily keyword rank tracking, BSR and sales analytics, listing and A+ content optimization, and category research in one place.
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SellerApp extensionsellerapp.com
FreeFree Amazon data overlay (keywords, rank, estimates).
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