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Chrome extension by Phantompson · Productivity · Developer

A Chrome extension in Productivity · Developer with 85 users, barely installed. Audience over the last 30 days: +6.

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

What the developer says, and 5 screenshots

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

Users
85
Rating
5.0 (2 ratings)
Users, last 30 days
+6
Rating, last 30 days
Steady over 30 days
Version
2.2.3
Updated in the store
2025-10-20
Published
2025-03-10
Manifest
V3
Browser access
4 permissions

How it has moved

Users
+6 since 09.10
77-86 · 16 readings
  1. 2026-10-0979
  2. 2026-10-1077
  3. 2026-10-1179
  4. 2026-10-1380
  5. 2026-10-1684
  6. 2026-10-1886
  7. 2026-10-1983
  8. 2026-10-2282
  9. 2026-10-2383
  10. 2026-10-2483
  11. 2026-10-2982
  12. 2026-11-0182
  13. 2026-11-0377
  14. 2026-11-0682
  15. 2026-11-0785
  16. 2026-11-0885
Rating
unchanged since 09.10
reviewsrating 5.00 · 16 readings
  1. 2026-10-09reviews2rating5.00
  2. 2026-10-10reviews2rating5.00
  3. 2026-10-11reviews2rating5.00
  4. 2026-10-13reviews2rating5.00
  5. 2026-10-16reviews2rating5.00
  6. 2026-10-18reviews2rating5.00
  7. 2026-10-19reviews2rating5.00
  8. 2026-10-22reviews2rating5.00
  9. 2026-10-23reviews2rating5.00
  10. 2026-10-24reviews2rating5.00
  11. 2026-10-29reviews2rating5.00
  12. 2026-11-01reviews2rating5.00
  13. 2026-11-03reviews2rating5.00
  14. 2026-11-06reviews2rating5.00
  15. 2026-11-07reviews2rating5.00
  16. 2026-11-08reviews2rating5.00
Users
-7 since 01.09
68-99 · 30 readings
  1. 2026-09-0192
  2. 2026-09-0294
  3. 2026-09-0495
  4. 2026-09-0599
  5. 2026-09-0798
  6. 2026-09-0899
  7. 2026-09-1098
  8. 2026-09-1394
  9. 2026-09-1689
  10. 2026-09-2088
  11. 2026-09-2591
  12. 2026-09-2890
  13. 2026-10-0482
  14. 2026-10-0868
  15. 2026-10-0979
  16. 2026-10-1077
  17. 2026-10-1179
  18. 2026-10-1380
  19. 2026-10-1684
  20. 2026-10-1886
  21. 2026-10-1983
  22. 2026-10-2282
  23. 2026-10-2383
  24. 2026-10-2483
  25. 2026-10-2982
  26. 2026-11-0182
  27. 2026-11-0377
  28. 2026-11-0682
  29. 2026-11-0785
  30. 2026-11-0885
Rating
unchanged since 01.09
reviewsrating 5.00 · 30 readings
  1. 2026-09-01reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00
  4. 2026-09-05reviews2rating5.00
  5. 2026-09-07reviews2rating5.00
  6. 2026-09-08reviews2rating5.00
  7. 2026-09-10reviews2rating5.00
  8. 2026-09-13reviews2rating5.00
  9. 2026-09-16reviews2rating5.00
  10. 2026-09-20reviews2rating5.00
  11. 2026-09-25reviews2rating5.00
  12. 2026-09-28reviews2rating5.00
  13. 2026-10-04reviews2rating5.00
  14. 2026-10-08reviews2rating5.00
  15. 2026-10-09reviews2rating5.00
  16. 2026-10-10reviews2rating5.00
  17. 2026-10-11reviews2rating5.00
  18. 2026-10-13reviews2rating5.00
  19. 2026-10-16reviews2rating5.00
  20. 2026-10-18reviews2rating5.00
  21. 2026-10-19reviews2rating5.00
  22. 2026-10-22reviews2rating5.00
  23. 2026-10-23reviews2rating5.00
  24. 2026-10-24reviews2rating5.00
  25. 2026-10-29reviews2rating5.00
  26. 2026-11-01reviews2rating5.00
  27. 2026-11-03reviews2rating5.00
  28. 2026-11-06reviews2rating5.00
  29. 2026-11-07reviews2rating5.00
  30. 2026-11-08reviews2rating5.00

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

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

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • Add items to the right-click menu contextMenus
Show the remaining 1
  • 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

Phantompson publishes 2 listings we track, 126 users between them.

  1. 网页性能监测器 Phantompson · Productivity · Tools · published 2025-02-27 41 users

Like this one

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

  1. JSON Formatter Describes nearly the same job, smaller audience 12 users ★ 5.0
  2. JSON Formatter & Highlighter Describes nearly the same job, smaller audience 6 users
  3. JSON Formatter Describes nearly the same job, smaller audience 86 users
  4. JSON View Pro Describes nearly the same job, smaller audience 378 users ★ 4.6
  5. JSON Formatter Describes nearly the same job, with an established audience 40k users ★ 4.4

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

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/kcopkceglmgjjolldfhnbbhgjjaplkdg/badge.svg)](https://extops.dev/extensions/kcopkceglmgjjolldfhnbbhgjjaplkdg)

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 2026-11-07. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built