Ext Ops Panel
Open dashboard

QuickCards

Chrome extension by Oliver Seifert · Productivity · Education

  • Established publisher

A Chrome extension in Productivity · Education with 306 users, barely installed. Audience over the last 30 days: +82.

Specific sites only: 3 match patterns.

What the developer says, and 5 screenshots

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

Users
306
Rating
5.0 (1 ratings)
Users, last 30 days
+82
Rating, last 30 days
Steady over 30 days
Version
1.7.2
Updated in the store
2026-08-14
Published
2026-05-04
Manifest
V3
Browser access
6 permissions, 3 site patterns

How it has moved

Users
+82 since 02.10
224-306 · 17 readings
  1. 2026-10-04236
  2. 2026-10-08241
  3. 2026-10-09246
  4. 2026-10-10249
  5. 2026-10-11253
  6. 2026-10-13248
  7. 2026-10-16261
  8. 2026-10-18257
  9. 2026-10-19263
  10. 2026-10-21261
  11. 2026-10-22264
  12. 2026-10-23274
  13. 2026-10-24286
  14. 2026-10-25288
  15. 2026-10-28298
  16. 2026-10-29299
  17. 2026-11-01306
Rating
unchanged since 02.10
reviewsrating 5.00 · 17 readings
  1. 2026-10-04reviews1rating5.00
  2. 2026-10-08reviews1rating5.00
  3. 2026-10-09reviews1rating5.00
  4. 2026-10-10reviews1rating5.00
  5. 2026-10-11reviews1rating5.00
  6. 2026-10-13reviews1rating5.00
  7. 2026-10-16reviews1rating5.00
  8. 2026-10-18reviews1rating5.00
  9. 2026-10-19reviews1rating5.00
  10. 2026-10-21reviews1rating5.00
  11. 2026-10-22reviews1rating5.00
  12. 2026-10-23reviews1rating5.00
  13. 2026-10-24reviews1rating5.00
  14. 2026-10-25reviews1rating5.00
  15. 2026-10-28reviews1rating5.00
  16. 2026-10-29reviews1rating5.00
  17. 2026-11-01reviews1rating5.00
Users
+167 since 01.09
139-306 · 31 readings
  1. 2026-09-01139
  2. 2026-09-02141
  3. 2026-09-04159
  4. 2026-09-07162
  5. 2026-09-09168
  6. 2026-09-10171
  7. 2026-09-13179
  8. 2026-09-15187
  9. 2026-09-17194
  10. 2026-09-20204
  11. 2026-09-21205
  12. 2026-09-25217
  13. 2026-09-26225
  14. 2026-09-28224
  15. 2026-10-04236
  16. 2026-10-08241
  17. 2026-10-09246
  18. 2026-10-10249
  19. 2026-10-11253
  20. 2026-10-13248
  21. 2026-10-16261
  22. 2026-10-18257
  23. 2026-10-19263
  24. 2026-10-21261
  25. 2026-10-22264
  26. 2026-10-23274
  27. 2026-10-24286
  28. 2026-10-25288
  29. 2026-10-28298
  30. 2026-10-29299
  31. 2026-11-01306
Rating
unchanged since 01.09
reviewsrating 5.00 · 31 readings
  1. 2026-09-01reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-07reviews1rating5.00
  5. 2026-09-09reviews1rating5.00
  6. 2026-09-10reviews1rating5.00
  7. 2026-09-13reviews1rating5.00
  8. 2026-09-15reviews1rating5.00
  9. 2026-09-17reviews1rating5.00
  10. 2026-09-20reviews1rating5.00
  11. 2026-09-21reviews1rating5.00
  12. 2026-09-25reviews1rating5.00
  13. 2026-09-26reviews1rating5.00
  14. 2026-09-28reviews1rating5.00
  15. 2026-10-04reviews1rating5.00
  16. 2026-10-08reviews1rating5.00
  17. 2026-10-09reviews1rating5.00
  18. 2026-10-10reviews1rating5.00
  19. 2026-10-11reviews1rating5.00
  20. 2026-10-13reviews1rating5.00
  21. 2026-10-16reviews1rating5.00
  22. 2026-10-18reviews1rating5.00
  23. 2026-10-19reviews1rating5.00
  24. 2026-10-21reviews1rating5.00
  25. 2026-10-22reviews1rating5.00
  26. 2026-10-23reviews1rating5.00
  27. 2026-10-24reviews1rating5.00
  28. 2026-10-25reviews1rating5.00
  29. 2026-10-28reviews1rating5.00
  30. 2026-10-29reviews1rating5.00
  31. 2026-11-01reviews1rating5.00

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

Specific sites only: 3 match patterns.

  • *://*.quizlet.com/*
  • https://knowt.com/*
  • https://3gso5evnnzbr7l4ubazdtfa4wq.appsync-api.us-east-1.amazonaws.com/*
  • Read and change cookies on the sites it can access cookies
  • See the address and title of every tab you have open tabs
  • Manage your downloads downloads
Show the remaining 3

The full permission history for this extension

What changed recently

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

The publisher

Oliver Seifert. Listed website: quickcards.org.

Like this one

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

  1. Quizlet Exporter Describes nearly the same job, smaller audience 164 users ★ 5.0
  2. Quizlet Getter - Get Quizlet Flashcards Describes nearly the same job, smaller audience 295 users ★ 3.7
  3. Quizlet to Anki Describes nearly the same job, smaller audience 1k users ★ 3.3
  4. Quizlet Exporter - Export Flashcards to JSON, CSV, Text Describes nearly the same job, smaller audience 5k users ★ 4.2
  5. DeckGrab 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.

Want this mark on your extension in our catalog?

Verify that you are its author and you can show this mark on the card, with live banners for your site and README. How verification works

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

Connect it in a minute See what the panel does
Add a badge to your README or site

The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/kjbjdolelcchfcmainniifnpkgikjfkc"><img src="https://extops.dev/extensions/kjbjdolelcchfcmainniifnpkgikjfkc/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 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built