KDP Metric — Amazon Book Niche Research

KDP book niche research: A–F niche grades, competition & BSR analysis, keyword & title tools — plus Pro Book Audit & on-device AI.

KDP Metric — Amazon book niche research for Kindle Direct Publishing (KDP) authors and self-publishers. Open the side panel on any Amazon book search, best-seller list or product page, and it instantly turns the page into clear, honest niche research — so you know whether a niche is worth writing for BEFORE you spend months on a book. ★ Free to install and use — no account, no sign-up. An optional Pro upgrade is a one-time payment, never a subscription. WHAT IT DOES (free) • A–F Niche Grade — one clear verdict on whether a niche is worth entering, blending demand, competition and how reachable the entry bar is. • Strategy Coach — plain-English guidance: the reviews to aim for, the price band or Kindle Unlimited strategy, the rating to hold, and a clear "enter or avoid" call. • Competition table — every book scored for how beatable it is, sortable and filterable, soft targets first. • Sales & Best Sellers Rank (BSR) trends — crowdsourced rank and price history a single page view can't show you. • Category targeting — any book's exact sub-categories with a "best pick" flag, plus the daily sales it takes to reach #1. • Keyword Explorer — related keywords from Amazon's own autocomplete, each click-to-analyse for real competition. • Title Optimizer — paste your working title for keyword coverage, proven words you're missing, and length vs the niche norm. • Title word cloud, Cover Previewer, book tracking, trending discovery, CSV export. • Works across 12 Amazon marketplaces, in light and dark themes. WHAT PRO ADDS (optional, one-time $59 — no subscription) • Book Audit & Recovery Plan — open your own book for a visibility grade and a prioritised, tickable fix-list. • Keyword & Metadata Builder — ready-to-paste backend keyword slots from live Amazon autocomplete, filtered to KDP's rules. • Niche AI Brief — expert prompts pre-loaded with your niche's real data for ChatGPT or Claude. • Category Hunter — find the easiest category to break into. • Category Scout AI — a private assistant that runs on your device and guides you to the right categories and keywords. • White-label PDF reports — branded with your own name and logo. HONEST BY DESIGN Review counts, ratings and prices are real, observed Amazon data. Sales and revenue figures are clearly labelled rough estimates (shown as ranges, never fake precision) — for relative comparison, not income promises. PRIVATE BY DESIGN KDP Metric only reads pages you deliberately open. It never crawls, opens tabs, or runs background requests, and it needs no account. You can OPTIONALLY contribute anonymous public book facts (rank, price, rating, review count) to build the shared trend data — off by default, no personal information. KDP Metric is an independent tool and is not affiliated with, endorsed by, or sponsored by Amazon.