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InjectJS – JavaScript Injector & Custom Script Manager

Chrome extension by injectjsteam · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 949 users, barely installed. Audience over the last 30 days: +105.

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

What the developer says, and 3 screenshots

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

Users
949
Rating
4.3 (11 ratings)
Users, last 30 days
+105
Rating, last 30 days
Steady over 30 days
Version
4.1.0
Updated in the store
2026-01-19
Published
2025-07-15
Manifest
V3
Browser access
5 permissions, 1 site pattern

How it has moved

Users
+105 since 01.10
844-968 · 18 readings
  1. 2026-10-05877
  2. 2026-10-08883
  3. 2026-10-09880
  4. 2026-10-10893
  5. 2026-10-13903
  6. 2026-10-16937
  7. 2026-10-17935
  8. 2026-10-18945
  9. 2026-10-19961
  10. 2026-10-20952
  11. 2026-10-21948
  12. 2026-10-22952
  13. 2026-10-23960
  14. 2026-10-24968
  15. 2026-10-25960
  16. 2026-10-28964
  17. 2026-10-29949
  18. 2026-10-30949
Rating
unchanged since 01.10
reviewsrating 4.27 · 18 readings
  1. 2026-10-05reviews11rating4.27
  2. 2026-10-08reviews11rating4.27
  3. 2026-10-09reviews11rating4.27
  4. 2026-10-10reviews11rating4.27
  5. 2026-10-13reviews11rating4.27
  6. 2026-10-16reviews11rating4.27
  7. 2026-10-17reviews11rating4.27
  8. 2026-10-18reviews11rating4.27
  9. 2026-10-19reviews11rating4.27
  10. 2026-10-20reviews11rating4.27
  11. 2026-10-21reviews11rating4.27
  12. 2026-10-22reviews11rating4.27
  13. 2026-10-23reviews11rating4.27
  14. 2026-10-24reviews11rating4.27
  15. 2026-10-25reviews11rating4.27
  16. 2026-10-28reviews11rating4.27
  17. 2026-10-29reviews11rating4.27
  18. 2026-10-30reviews11rating4.27
Users
+169 since 31.08
779-968 · 32 readings
  1. 2026-08-31780
  2. 2026-09-02786
  3. 2026-09-04779
  4. 2026-09-06790
  5. 2026-09-07791
  6. 2026-09-08789
  7. 2026-09-09792
  8. 2026-09-13806
  9. 2026-09-15801
  10. 2026-09-16812
  11. 2026-09-20836
  12. 2026-09-21834
  13. 2026-09-25843
  14. 2026-09-26844
  15. 2026-10-05877
  16. 2026-10-08883
  17. 2026-10-09880
  18. 2026-10-10893
  19. 2026-10-13903
  20. 2026-10-16937
  21. 2026-10-17935
  22. 2026-10-18945
  23. 2026-10-19961
  24. 2026-10-20952
  25. 2026-10-21948
  26. 2026-10-22952
  27. 2026-10-23960
  28. 2026-10-24968
  29. 2026-10-25960
  30. 2026-10-28964
  31. 2026-10-29949
  32. 2026-10-30949
Rating
-0.33 since 31.08
reviewsrating 4.27-4.60 · 32 readings
  1. 2026-08-31reviews10rating4.60
  2. 2026-09-02reviews10rating4.60
  3. 2026-09-04reviews10rating4.60
  4. 2026-09-06reviews10rating4.60
  5. 2026-09-07reviews10rating4.60
  6. 2026-09-08reviews10rating4.60
  7. 2026-09-09reviews10rating4.60
  8. 2026-09-13reviews10rating4.60
  9. 2026-09-15reviews10rating4.60
  10. 2026-09-16reviews10rating4.60
  11. 2026-09-20reviews10rating4.60
  12. 2026-09-21reviews10rating4.60
  13. 2026-09-25reviews10rating4.60
  14. 2026-09-26reviews11rating4.27
  15. 2026-10-05reviews11rating4.27
  16. 2026-10-08reviews11rating4.27
  17. 2026-10-09reviews11rating4.27
  18. 2026-10-10reviews11rating4.27
  19. 2026-10-13reviews11rating4.27
  20. 2026-10-16reviews11rating4.27
  21. 2026-10-17reviews11rating4.27
  22. 2026-10-18reviews11rating4.27
  23. 2026-10-19reviews11rating4.27
  24. 2026-10-20reviews11rating4.27
  25. 2026-10-21reviews11rating4.27
  26. 2026-10-22reviews11rating4.27
  27. 2026-10-23reviews11rating4.27
  28. 2026-10-24reviews11rating4.27
  29. 2026-10-25reviews11rating4.27
  30. 2026-10-28reviews11rating4.27
  31. 2026-10-29reviews11rating4.27
  32. 2026-10-30reviews11rating4.27

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.

Show the remaining 2
  • Store data in your browser storage
  • Declares userScripts

The full permission history for this extension

What changed recently

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

The publisher

injectjsteam publishes 2 listings we track, 987 users between them. Listed website: injectjs.net.

  1. Modify Header injectjsteam · Productivity · Developer · published 2026-07-14 38 users

Like this one

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

  1. Code Injector Describes nearly the same job, smaller audience 226 users ★ 3.5
  2. JS Injector Describes nearly the same job, smaller audience 20 users
  3. Script Master Describes nearly the same job, smaller audience 1k users ★ 1.0
  4. Add Javascript Describes nearly the same job, smaller audience 58 users ★ 5.0
  5. Script Injector Describes nearly the same job, smaller audience 2k users ★ 3.5

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

<a href="https://extops.dev/extensions/fdidkffdehkbdhelhlankfaofaadiopn"><img src="https://extops.dev/extensions/fdidkffdehkbdhelhlankfaofaadiopn/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