100% free Chrome extension for KDP authors

Know which book niches are winnable — before you write a word.

KDP Metric reads any Amazon book page and turns it into clear, honest research: real competition analysis, an A–F niche grade, sales & BSR trends, keyword & title tools, and a Strategy Coach that tells you exactly what to aim for.

Free forever · No account · No sign-up · No personal tracking
KDP Metric side panel showing a niche grade and book analysis Screenshot: side panel with Niche Grade + results table
🔒 Browse-only🚫 No personal tracking🕵️ No personal data🆓 Free🌍 12 Amazon stores

Everything you need to choose a winning niche

Open the side panel on any Amazon book search, best-seller list or product page — the analysis updates as you browse.

🎓

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 for newcomers: target reviews, price band (or Kindle Unlimited strategy), the rating to hold, and a clear "enter or avoid" call.

🎯

Competitor & Rival Scores

Every book scored for how beatable it is. The soft targets rise to the top of a sortable, filterable table.

📈

Sales & BSR Trends

Crowdsourced rank and price history on books over time — trend data a single page view can't show you.

📚

Category Targeting

On any book, see its exact sub-categories with a "best pick" flag — and how many daily sales it takes to reach #1.

🔎

Keyword Explorer

Related keywords from Amazon's own autocomplete, each one click-to-analyse for its real competition.

✍️

Title Optimizer

Paste your working title and see how it stacks up: keyword coverage, the proven niche words you're missing, and length vs the norm.

☁️

Title Word Cloud

The recurring hooks and tropes across a niche's titles, at a glance — instant inspiration for your angle.

📄

White-label PDF Report PRO

Export a clean report — grade, strategy, competitors, keywords and your book-audit fixes — branded with your own logo & name.

🖼️

Cover Previewer

A grid of every competitor cover on the page, so you can design something that stands out.

Book Tracking

Pin any book — yours or a rival's — and watch its BSR & price over time from your Tracked list.

🔥

Trending Discovery

One click to Amazon's Movers & Shakers, Hot New Releases and Best Sellers — analysed instantly.

📤

CSV Export

Export any analysed table to a spreadsheet — including grades, scores and estimates — for deeper work.

🌗

Light & Dark, 12 Stores

A clean, modern interface in light or dark mode, across all major Amazon marketplaces.

🩺

Book Audit & Recovery Plan PRO

Open your own book for a Visibility grade and a prioritised, tickable fix-list — exactly why it's stuck and the next move to make.

🔑

Keyword & Metadata Builder PRO

Ready-to-paste backend keyword slots and subtitle terms, built from live Amazon autocomplete + your niche — filtered to KDP's rules.

🤖

Niche AI Brief PRO

Expert prompts pre-loaded with your niche's real data — paste into ChatGPT or Claude for instant, grounded market analysis.

🚪

Category Hunter PRO

Find the easiest category to break into — how entrenched the leaders are and your realistic route to a #1 bestseller badge.

How to use it — three steps

  1. 1

    Install & open

    Add KDP Metric to Chrome, pin it, and open the side panel from the toolbar icon.

  2. 2

    Browse Amazon books

    Search a keyword (e.g. "cozy mystery"), open a Best Sellers list, or land on any book's page.

  3. 3

    Read the verdict

    Get the Niche Grade, Coach advice, competition table and trends — instantly, with no clicking around.

Why authors use it

Stop writing into a wall

The #1 mistake new authors make is picking a niche that's already saturated. KDP Metric shows you the real competition before you spend months writing.

Honest, not hyped

Review counts, ratings and competition are real Amazon data. Sales figures are clearly labelled as rough models — we show ranges, never fake precision.

Know exactly what to aim for

Not just numbers — concrete targets: how many reviews to get visible, which price or KU strategy, which sub-category to rank in.

Private and free

No account, no sign-up, no personal tracking. It reads only the pages you open — it never crawls or runs in the background.

Private by design

KDP Metric only reads pages you deliberately open — it never crawls, opens tabs, or needs an account. It stores no browsing history.

You can optionally contribute anonymous public book facts (rank, price, rating, review count) to build the shared trend data that benefits everyone. It's off by default, contains no personal data, and you can turn it off anytime. See our privacy policy and terms of use.

Free vs Pro

Start free. Upgrade to Pro (launching soon) when you want the expert book audit, the guided fix-it plan and the AI brief that tell you exactly what to do next — one payment, no subscription.

Free
$0 · forever
Add to Chrome

Everything you need to research a niche as you browse.

⚡ Launch deal — 50% off
Pro PRO COMING SOON
$118 $59 · lifetime licence

Founding-member launch price — save $59. Pay once for lifetime use, plus 12 months of major updates & support. No subscription.

Coming soon

🔔 Pro is launching soon. Install KDP Metric free today and lock in the launch price when it opens.

Everything in Free, plus the expert book audit, guided fixes, keyword builder & AI brief.

What “lifetime licence” means

Pay once and keep using the version of KDP Metric Pro you purchase, for the lifetime of the product. Your purchase includes:

  • Lifetime use of the version you buy
  • 12 months of major feature updates
  • 12 months of email support
  • Ongoing compatibility fixes where reasonably possible

After the included update & support period, the extension keeps working with no subscription. Future major upgrades, extended support, or new premium modules may require a paid renewal or upgrade.

What you getFreePro
A–F Niche Grade, competition & rival scores
Keyword Explorer & Title Optimizer
Sales & BSR trends, tracking, CSV export
12 Amazon marketplaces · light & dark
Book Audit + tickable Recovery Plan
Keyword & Metadata Builder (7 slots)
Niche AI Brief (data-loaded prompts)
Category Hunter (entry difficulty)
Guided “next move” mode
Branded / white-label PDF reports

Research smarter. Publish with confidence.

Completely free — no account, no sign-up, no catch.

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KDP Metric is an independent tool and is not affiliated with, endorsed by, or sponsored by Amazon. Sales and revenue figures are rough estimates, not financial advice.