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KDP Metric — Amazon Book Niche Research

Chrome extension by KDP Metric · Productivity · Workflow

  • Established publisher

A Chrome extension in Productivity · Workflow with 334 users, barely installed. Audience over the last 30 days: +120.

Specific sites only: 27 match patterns.

What the developer says, and 5 screenshots

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
334
Rating
5.0 (1 ratings)
Users, last 30 days
+120
Rating, last 30 days
Steady over 30 days
Version
1.1.3
Updated in the store
2026-10-10
Published
2026-06-04
Manifest
V3
Browser access
4 permissions, 27 site patterns

How it has moved

Users
+120 since 01.10
214-334 · 20 readings
2026-10-08: released 1.1.3
  1. 2026-10-04235
  2. 2026-10-08247released 1.1.3
  3. 2026-10-09251
  4. 2026-10-10252
  5. 2026-10-13261
  6. 2026-10-16271
  7. 2026-10-17278
  8. 2026-10-18283
  9. 2026-10-19286
  10. 2026-10-20292
  11. 2026-10-21298
  12. 2026-10-22302
  13. 2026-10-23301
  14. 2026-10-24305
  15. 2026-10-25311
  16. 2026-10-26312
  17. 2026-10-28328
  18. 2026-10-29329
  19. 2026-10-30334
  20. 2026-10-31334
Rating
unchanged since 01.10
reviewsrating 5.00 · 20 readings
2026-10-08: released 1.1.3
  1. 2026-10-04reviews1rating5.00
  2. 2026-10-08reviews1rating5.00released 1.1.3
  3. 2026-10-09reviews1rating5.00
  4. 2026-10-10reviews1rating5.00
  5. 2026-10-13reviews1rating5.00
  6. 2026-10-16reviews1rating5.00
  7. 2026-10-17reviews1rating5.00
  8. 2026-10-18reviews1rating5.00
  9. 2026-10-19reviews1rating5.00
  10. 2026-10-20reviews1rating5.00
  11. 2026-10-21reviews1rating5.00
  12. 2026-10-22reviews1rating5.00
  13. 2026-10-23reviews1rating5.00
  14. 2026-10-24reviews1rating5.00
  15. 2026-10-25reviews1rating5.00
  16. 2026-10-26reviews1rating5.00
  17. 2026-10-28reviews1rating5.00
  18. 2026-10-29reviews1rating5.00
  19. 2026-10-30reviews1rating5.00
  20. 2026-10-31reviews1rating5.00
Users
+211 since 01.09
123-334 · 35 readings
2026-10-08: released 1.1.3
  1. 2026-09-01123
  2. 2026-09-02130
  3. 2026-09-03135
  4. 2026-09-04143
  5. 2026-09-07152
  6. 2026-09-08158
  7. 2026-09-10163
  8. 2026-09-13179
  9. 2026-09-15190
  10. 2026-09-17189
  11. 2026-09-20205
  12. 2026-09-21199
  13. 2026-09-25206
  14. 2026-09-26209
  15. 2026-09-28214
  16. 2026-10-04235
  17. 2026-10-08247released 1.1.3
  18. 2026-10-09251
  19. 2026-10-10252
  20. 2026-10-13261
  21. 2026-10-16271
  22. 2026-10-17278
  23. 2026-10-18283
  24. 2026-10-19286
  25. 2026-10-20292
  26. 2026-10-21298
  27. 2026-10-22302
  28. 2026-10-23301
  29. 2026-10-24305
  30. 2026-10-25311
  31. 2026-10-26312
  32. 2026-10-28328
  33. 2026-10-29329
  34. 2026-10-30334
  35. 2026-10-31334
Rating
unchanged since 01.09
reviewsrating 5.00 · 35 readings
2026-10-08: released 1.1.3
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-03reviews1rating5.00
  4. 2026-09-04reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-10reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
  10. 2026-09-17reviews1rating5.00
  11. 2026-09-20reviews1rating5.00
  12. 2026-09-21reviews1rating5.00
  13. 2026-09-25reviews1rating5.00
  14. 2026-09-26reviews1rating5.00
  15. 2026-09-28reviews1rating5.00
  16. 2026-10-04reviews1rating5.00
  17. 2026-10-08reviews1rating5.00released 1.1.3
  18. 2026-10-09reviews1rating5.00
  19. 2026-10-10reviews1rating5.00
  20. 2026-10-13reviews1rating5.00
  21. 2026-10-16reviews1rating5.00
  22. 2026-10-17reviews1rating5.00
  23. 2026-10-18reviews1rating5.00
  24. 2026-10-19reviews1rating5.00
  25. 2026-10-20reviews1rating5.00
  26. 2026-10-21reviews1rating5.00
  27. 2026-10-22reviews1rating5.00
  28. 2026-10-23reviews1rating5.00
  29. 2026-10-24reviews1rating5.00
  30. 2026-10-25reviews1rating5.00
  31. 2026-10-26reviews1rating5.00
  32. 2026-10-28reviews1rating5.00
  33. 2026-10-29reviews1rating5.00
  34. 2026-10-30reviews1rating5.00
  35. 2026-10-31reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 27 match patterns.

  • *://*.amazon.com/*
  • *://*.amazon.co.uk/*
  • *://*.amazon.ca/*
Show the remaining 9
  • *://*.amazon.de/*
  • *://*.amazon.fr/*
  • *://*.amazon.es/*
  • *://*.amazon.it/*
  • *://*.amazon.co.jp/*
  • *://*.amazon.com.au/*
  • *://*.amazon.in/*
  • *://*.amazon.sg/*
  • *://*.amazon.ae/*
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Open a panel beside the page sidePanel
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.1.3

What changed recently

  1. Package size changed
  2. Store description rewritten
  3. Released version 1.1.3 (was 1.1.2)
Show the remaining 1
  1. Store badges changed

The publisher

KDP Metric. Listed website: kdpmetric.com.

Like this one

Listings the catalog judges closest in what they say they do.

  1. Nicherr: KDP Niche Hunter Describes nearly the same job, smaller audience 32 users
  2. Nichesmith — KDP Niche Research & Book Maker Describes nearly the same job, smaller audience 37 users ★ 5.0
  3. KDP Quick Insights — Amazon BSR, Sales Estimator & Niche Research Describes nearly the same job, smaller audience 180 users
  4. KDSPY – Keyword Research for Authors Describes nearly the same job, with an established audience 70k users ★ 3.8
  5. BookBloom - KDP Author Tools Describes nearly the same job, smaller audience 744 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Users and rating on Ext Ops Panel

Markdown

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HTML

<a href="https://extops.dev/extensions/cfachlgfcpncecmimabkobchdikoidlc"><img src="https://extops.dev/extensions/cfachlgfcpncecmimabkobchdikoidlc/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-30. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built