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Matomo Tag Manager Monitor

Chrome extension by Andi Petzoldt · Productivity · Developer

A Chrome extension in Productivity · Developer with 121 users, barely installed. Audience over the last 30 days: +2.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 2 screenshots

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

Users
121
Rating
not rated yet
Users, last 30 days
+2
Version
1.4.1
Updated in the store
2025-07-07
Published
2025-07-04
Manifest
V3
Browser access
3 permissions, 1 site pattern

How it has moved

Users
+2 since 03.10
117-134 · 21 readings
  1. 2026-10-04132
  2. 2026-10-08134
  3. 2026-10-09131
  4. 2026-10-10130
  5. 2026-10-11127
  6. 2026-10-13126
  7. 2026-10-16132
  8. 2026-10-17133
  9. 2026-10-18131
  10. 2026-10-19129
  11. 2026-10-20132
  12. 2026-10-21130
  13. 2026-10-22126
  14. 2026-10-23121
  15. 2026-10-25117
  16. 2026-10-26118
  17. 2026-10-28121
  18. 2026-10-29119
  19. 2026-10-30122
  20. 2026-11-01121
  21. 2026-11-02121
Users
unchanged since 31.08
117-134 · 34 readings
  1. 2026-08-31121
  2. 2026-09-02119
  3. 2026-09-05121
  4. 2026-09-07125
  5. 2026-09-08121
  6. 2026-09-09126
  7. 2026-09-13125
  8. 2026-09-15123
  9. 2026-09-17121
  10. 2026-09-21123
  11. 2026-09-25124
  12. 2026-09-26118
  13. 2026-09-28119
  14. 2026-10-04132
  15. 2026-10-08134
  16. 2026-10-09131
  17. 2026-10-10130
  18. 2026-10-11127
  19. 2026-10-13126
  20. 2026-10-16132
  21. 2026-10-17133
  22. 2026-10-18131
  23. 2026-10-19129
  24. 2026-10-20132
  25. 2026-10-21130
  26. 2026-10-22126
  27. 2026-10-23121
  28. 2026-10-25117
  29. 2026-10-26118
  30. 2026-10-28121
  31. 2026-10-29119
  32. 2026-10-30122
  33. 2026-11-01121
  34. 2026-11-02121

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

Every site you visit. This extension can read and change the content of any page you open.

  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
  • 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

Andi Petzoldt.

Like this one

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

  1. Tag Master – GTM & GA4 Debugger, DataLayer Inspector Describes nearly the same job, smaller audience 669 users ★ 4.8
  2. Analytics Debugger Describes nearly the same job, with a large installed audience 100k users ★ 4.6
  3. GTM Scanner Describes nearly the same job, smaller audience 80 users
  4. Tagfire Live Tag Debugger Describes nearly the same job, smaller audience 9 users
  5. TagHound - Analytics/GTM/Pixel Debugger Describes nearly the same job, with an established audience 50k users ★ 4.8

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