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Chrome extension by Master Tools · Productivity · Developer

A Chrome extension in Productivity · Developer with 868 users, barely installed. Audience over the last 30 days: +21.

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

What the developer says, and 5 screenshots

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

Users
868
Rating
5.0 (2 ratings)
Users, last 30 days
+21
Rating, last 30 days
Steady over 30 days
Version
3.0.0
Updated in the store
2024-08-15
Published
2024-08-15
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
+21 since 29.09
835-868 · 17 readings
  1. 2026-10-04842
  2. 2026-10-08845
  3. 2026-10-09836
  4. 2026-10-10840
  5. 2026-10-13835
  6. 2026-10-16839
  7. 2026-10-17852
  8. 2026-10-18857
  9. 2026-10-19852
  10. 2026-10-20863
  11. 2026-10-21862
  12. 2026-10-22860
  13. 2026-10-23862
  14. 2026-10-24861
  15. 2026-10-25859
  16. 2026-10-28857
  17. 2026-10-29868
Rating
unchanged since 29.09
reviewsrating 5.00 · 17 readings
  1. 2026-10-04reviews2rating5.00
  2. 2026-10-08reviews2rating5.00
  3. 2026-10-09reviews2rating5.00
  4. 2026-10-10reviews2rating5.00
  5. 2026-10-13reviews2rating5.00
  6. 2026-10-16reviews2rating5.00
  7. 2026-10-17reviews2rating5.00
  8. 2026-10-18reviews2rating5.00
  9. 2026-10-19reviews2rating5.00
  10. 2026-10-20reviews2rating5.00
  11. 2026-10-21reviews2rating5.00
  12. 2026-10-22reviews2rating5.00
  13. 2026-10-23reviews2rating5.00
  14. 2026-10-24reviews2rating5.00
  15. 2026-10-25reviews2rating5.00
  16. 2026-10-28reviews2rating5.00
  17. 2026-10-29reviews2rating5.00
Users
+55 since 31.08
813-868 · 33 readings
  1. 2026-08-31813
  2. 2026-09-02817
  3. 2026-09-04815
  4. 2026-09-06819
  5. 2026-09-07827
  6. 2026-09-08830
  7. 2026-09-09825
  8. 2026-09-10839
  9. 2026-09-13831
  10. 2026-09-15837
  11. 2026-09-17831
  12. 2026-09-20816
  13. 2026-09-21820
  14. 2026-09-25830
  15. 2026-09-26841
  16. 2026-09-28847
  17. 2026-10-04842
  18. 2026-10-08845
  19. 2026-10-09836
  20. 2026-10-10840
  21. 2026-10-13835
  22. 2026-10-16839
  23. 2026-10-17852
  24. 2026-10-18857
  25. 2026-10-19852
  26. 2026-10-20863
  27. 2026-10-21862
  28. 2026-10-22860
  29. 2026-10-23862
  30. 2026-10-24861
  31. 2026-10-25859
  32. 2026-10-28857
  33. 2026-10-29868
Rating
unchanged since 31.08
reviewsrating 5.00 · 33 readings
  1. 2026-08-31reviews2rating5.00
  2. 2026-09-02reviews2rating5.00
  3. 2026-09-04reviews2rating5.00
  4. 2026-09-06reviews2rating5.00
  5. 2026-09-07reviews2rating5.00
  6. 2026-09-08reviews2rating5.00
  7. 2026-09-09reviews2rating5.00
  8. 2026-09-10reviews2rating5.00
  9. 2026-09-13reviews2rating5.00
  10. 2026-09-15reviews2rating5.00
  11. 2026-09-17reviews2rating5.00
  12. 2026-09-20reviews2rating5.00
  13. 2026-09-21reviews2rating5.00
  14. 2026-09-25reviews2rating5.00
  15. 2026-09-26reviews2rating5.00
  16. 2026-09-28reviews2rating5.00
  17. 2026-10-04reviews2rating5.00
  18. 2026-10-08reviews2rating5.00
  19. 2026-10-09reviews2rating5.00
  20. 2026-10-10reviews2rating5.00
  21. 2026-10-13reviews2rating5.00
  22. 2026-10-16reviews2rating5.00
  23. 2026-10-17reviews2rating5.00
  24. 2026-10-18reviews2rating5.00
  25. 2026-10-19reviews2rating5.00
  26. 2026-10-20reviews2rating5.00
  27. 2026-10-21reviews2rating5.00
  28. 2026-10-22reviews2rating5.00
  29. 2026-10-23reviews2rating5.00
  30. 2026-10-24reviews2rating5.00
  31. 2026-10-25reviews2rating5.00
  32. 2026-10-28reviews2rating5.00
  33. 2026-10-29reviews2rating5.00

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

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

The full permission history for this extension

What changed recently

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

The publisher

Master Tools publishes 8 listings we track, 204k users between them.

  1. Location Guard (V3) Master Tools · Make Chrome Yours · Accessibility · published 2025-01-13 100k users ★ 4.2
  2. Proxy SwitchyOmega (V3) Master Tools · Productivity · Developer · published 2024-08-06 100k users ★ 3.4
  3. h264ify (V3) Master Tools · Productivity · Workflow · published 2024-08-07 1k users ★ 4.0
Show 4 more from this publisher
  1. Global Speed Accelerator Master Tools · Make Chrome Yours · Accessibility · published 2024-02-26 1k users ★ 5.0
  2. Dumbload (Free Video Downloader) Master Tools · Productivity · Tools · published 2024-08-30 379 users ★ 3.0
  3. JSON Viewer Master Tools · Productivity · Developer · published 2024-09-04 349 users ★ 5.0
  4. Youtube Ad Cleaner Master Tools · Productivity · Workflow · published 2024-07-31 46 users ★ 3.7

Like this one

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

  1. SEO Meta Tag Inspector Describes nearly the same job, smaller audience 5 users
  2. 1 Click SEO Meta Tags Analyzer Describes nearly the same job, smaller audience 73 users ★ 5.0
  3. SEO Meta Tags Analyzer - SEO Checker Pro Describes nearly the same job, smaller audience 155 users ★ 5.0
  4. SEO Meta Inspector by Chokqu Describes nearly the same job, smaller audience 2 users (last published figure)
  5. MetaSight - SEO Page Reviewer Describes nearly the same job, smaller audience 4 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

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

HTML

<a href="https://extops.dev/extensions/jcbeebppcfcminjgfhkljdnjkfkfjopk"><img src="https://extops.dev/extensions/jcbeebppcfcminjgfhkljdnjkfkfjopk/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 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built