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Chrome extension by michelangelo.casini · Productivity · Education

A Chrome extension in Productivity · Education with 20 users, barely installed. Audience over the last 30 days: unchanged.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 1 screenshot

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

Users
20
Rating
not rated yet
Users, last 30 days
Unchanged
Version
1.0
Updated in the store
2025-03-11
Published
2025-03-11
Manifest
V3
Browser access
1 permission

How it has moved

Users
unchanged since 02.10
20-24 · 13 readings
  1. 2026-10-0422
  2. 2026-10-0821
  3. 2026-10-0923
  4. 2026-10-1022
  5. 2026-10-1323
  6. 2026-10-1722
  7. 2026-10-1824
  8. 2026-10-1922
  9. 2026-10-2123
  10. 2026-10-2324
  11. 2026-10-2823
  12. 2026-10-2924
  13. 2026-11-0120
Users
+1 since 01.09
18-24 · 25 readings
  1. 2026-09-0119
  2. 2026-09-0222
  3. 2026-09-0420
  4. 2026-09-0621
  5. 2026-09-0720
  6. 2026-09-0821
  7. 2026-09-0918
  8. 2026-09-1320
  9. 2026-09-1521
  10. 2026-09-1720
  11. 2026-09-2119
  12. 2026-09-2620
  13. 2026-10-0422
  14. 2026-10-0821
  15. 2026-10-0923
  16. 2026-10-1022
  17. 2026-10-1323
  18. 2026-10-1722
  19. 2026-10-1824
  20. 2026-10-1922
  21. 2026-10-2123
  22. 2026-10-2324
  23. 2026-10-2823
  24. 2026-10-2924
  25. 2026-11-0120

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

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

michelangelo.casini.

Like this one

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

  1. Open ISBN Describes nearly the same job, smaller audience 139 users
  2. BookCollectorConnect Describes nearly the same job, smaller audience 247 users ★ 3.0
  3. Search Books on TheStoryGraph Describes nearly the same job, smaller audience 17 users ★ 5.0
  4. Find in calil Describes nearly the same job, smaller audience 14 users
  5. Findbook ISBN Extension Describes nearly the same job, smaller audience 62 users ★ 4.5

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

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Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built