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Chrome extension by javacpc · Productivity · Education

  • Trader

A Chrome extension in Productivity · Education with 83 users, barely installed. Audience over the last 30 days: -8.

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

What the developer says, and 2 screenshots

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

Users
83
Rating
5.0 (1 ratings)
Users, last 30 days
-8
Rating, last 30 days
Steady over 30 days
Version
2.0
Updated in the store
2026-05-12
Published
2024-11-02
Manifest
V3
Browser access
3 permissions

How it has moved

Users
-8 since 03.10
79-91 · 17 readings
  1. 2026-10-0486
  2. 2026-10-0984
  3. 2026-10-1183
  4. 2026-10-1379
  5. 2026-10-1687
  6. 2026-10-1886
  7. 2026-10-2085
  8. 2026-10-2186
  9. 2026-10-2285
  10. 2026-10-2384
  11. 2026-10-2483
  12. 2026-10-2583
  13. 2026-10-2880
  14. 2026-10-2981
  15. 2026-10-3083
  16. 2026-11-0183
  17. 2026-11-0283
Rating
unchanged since 03.10
reviewsrating 5.00 · 17 readings
  1. 2026-10-04reviews1rating5.00
  2. 2026-10-09reviews1rating5.00
  3. 2026-10-11reviews1rating5.00
  4. 2026-10-13reviews1rating5.00
  5. 2026-10-16reviews1rating5.00
  6. 2026-10-18reviews1rating5.00
  7. 2026-10-20reviews1rating5.00
  8. 2026-10-21reviews1rating5.00
  9. 2026-10-22reviews1rating5.00
  10. 2026-10-23reviews1rating5.00
  11. 2026-10-24reviews1rating5.00
  12. 2026-10-25reviews1rating5.00
  13. 2026-10-28reviews1rating5.00
  14. 2026-10-29reviews1rating5.00
  15. 2026-10-30reviews1rating5.00
  16. 2026-11-01reviews1rating5.00
  17. 2026-11-02reviews1rating5.00
Users
+14 since 31.08
69-91 · 30 readings
  1. 2026-08-3169
  2. 2026-09-0373
  3. 2026-09-0572
  4. 2026-09-0778
  5. 2026-09-0974
  6. 2026-09-1071
  7. 2026-09-1382
  8. 2026-09-1779
  9. 2026-09-2080
  10. 2026-09-2182
  11. 2026-09-2586
  12. 2026-09-2790
  13. 2026-09-2891
  14. 2026-10-0486
  15. 2026-10-0984
  16. 2026-10-1183
  17. 2026-10-1379
  18. 2026-10-1687
  19. 2026-10-1886
  20. 2026-10-2085
  21. 2026-10-2186
  22. 2026-10-2285
  23. 2026-10-2384
  24. 2026-10-2483
  25. 2026-10-2583
  26. 2026-10-2880
  27. 2026-10-2981
  28. 2026-10-3083
  29. 2026-11-0183
  30. 2026-11-0283
Rating
unchanged since 31.08
reviewsrating 5.00 · 30 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-03reviews1rating5.00
  3. 2026-09-05reviews1rating5.00
  4. 2026-09-07reviews1rating5.00
  5. 2026-09-09reviews1rating5.00
  6. 2026-09-10reviews1rating5.00
  7. 2026-09-13reviews1rating5.00
  8. 2026-09-17reviews1rating5.00
  9. 2026-09-20reviews1rating5.00
  10. 2026-09-21reviews1rating5.00
  11. 2026-09-25reviews1rating5.00
  12. 2026-09-27reviews1rating5.00
  13. 2026-09-28reviews1rating5.00
  14. 2026-10-04reviews1rating5.00
  15. 2026-10-09reviews1rating5.00
  16. 2026-10-11reviews1rating5.00
  17. 2026-10-13reviews1rating5.00
  18. 2026-10-16reviews1rating5.00
  19. 2026-10-18reviews1rating5.00
  20. 2026-10-20reviews1rating5.00
  21. 2026-10-21reviews1rating5.00
  22. 2026-10-22reviews1rating5.00
  23. 2026-10-23reviews1rating5.00
  24. 2026-10-24reviews1rating5.00
  25. 2026-10-25reviews1rating5.00
  26. 2026-10-28reviews1rating5.00
  27. 2026-10-29reviews1rating5.00
  28. 2026-10-30reviews1rating5.00
  29. 2026-11-01reviews1rating5.00
  30. 2026-11-02reviews1rating5.00

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.

  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • 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

javacpc publishes 9 listings we track, 427 users between them.

  1. 番茄鐘 javacpc · Productivity · Tools · published 2024-12-07 132 users ★ 5.0
  2. Signature and Encryption javacpc · Productivity · Tools · published 2024-11-12 69 users ★ 5.0
  3. 體驗活動課程工具 javacpc · Productivity · Education · published 2025-09-15 51 users ★ 5.0
Show 5 more from this publisher
  1. 龜甲易占 (Turtle Shell I-Ching) javacpc · Productivity · Tools · published 2026-06-30 31 users ★ 5.0
  2. Live Interpreter Pro javacpc · Productivity · Education · published 2026-01-12 23 users
  3. TV Data Sniffer v6 javacpc · Productivity · Tools · published 2025-12-24 20 users
  4. CRSM 課程掛號系統 javacpc · Productivity · Education · published 2026-07-07 13 users
  5. SoloTab 簡譜吉他手樂譜大師 - Guitar Sheet Studio javacpc · Productivity · Tools · published 2026-10-05 5 users

Like this one

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

  1. 无印通 Describes nearly the same job, smaller audience 31 users
  2. Island Watermark Describes nearly the same job, smaller audience 12 users
  3. Notice! Describes nearly the same job, smaller audience 3 users
  4. Auto Watermarker Describes nearly the same job, smaller audience 3 users
  5. Universal Overlay Tool Describes nearly the same job, smaller audience 7 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/hmpcldgikaeeobbcmbghjljflkpghkmm/badge.svg)](https://extops.dev/extensions/hmpcldgikaeeobbcmbghjljflkpghkmm)

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