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Marvin Stripe's Test Card Filler

Chrome extension · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 330 users, barely installed. Audience over the last 30 days: -68.

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

What the developer says, and 3 screenshots

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

Users
330
Rating
4.6 (5 ratings)
Users, last 30 days
-68
Rating, last 30 days
Steady over 30 days
Version
1.1
Updated in the store
2024-10-25
Published
2024-05-12
Manifest
V3
Browser access
3 permissions

How it has moved

Users
-68 since 02.10
330-846 · 16 readings
  1. 2026-10-04378
  2. 2026-10-08370
  3. 2026-10-09374
  4. 2026-10-10376
  5. 2026-10-13373
  6. 2026-10-16384
  7. 2026-10-17378
  8. 2026-10-18374
  9. 2026-10-19359
  10. 2026-10-21358
  11. 2026-10-22353
  12. 2026-10-23345
  13. 2026-10-24846
  14. 2026-10-28844
  15. 2026-10-29840
  16. 2026-11-01330
Rating
unchanged since 02.10
reviewsrating 4.60 · 16 readings
  1. 2026-10-04reviews5rating4.60
  2. 2026-10-08reviews5rating4.60
  3. 2026-10-09reviews5rating4.60
  4. 2026-10-10reviews5rating4.60
  5. 2026-10-13reviews5rating4.60
  6. 2026-10-16reviews5rating4.60
  7. 2026-10-17reviews5rating4.60
  8. 2026-10-18reviews5rating4.60
  9. 2026-10-19reviews5rating4.60
  10. 2026-10-21reviews5rating4.60
  11. 2026-10-22reviews5rating4.60
  12. 2026-10-23reviews5rating4.60
  13. 2026-10-24reviews5rating4.60
  14. 2026-10-28reviews5rating4.60
  15. 2026-10-29reviews5rating4.60
  16. 2026-11-01reviews5rating4.60
Users
-83 since 09.09
330-846 · 26 readings
2026-09-09: appeared in the store2026-10-01: gained the good publisher record badge
  1. 2026-09-09413appeared in the store
  2. 2026-09-10419
  3. 2026-09-13420
  4. 2026-09-15417
  5. 2026-09-17406
  6. 2026-09-20386
  7. 2026-09-21387
  8. 2026-09-25397
  9. 2026-09-26403
  10. 2026-09-28398
  11. 2026-10-04378
  12. 2026-10-08370
  13. 2026-10-09374
  14. 2026-10-10376
  15. 2026-10-13373
  16. 2026-10-16384
  17. 2026-10-17378
  18. 2026-10-18374
  19. 2026-10-19359
  20. 2026-10-21358
  21. 2026-10-22353
  22. 2026-10-23345
  23. 2026-10-24846
  24. 2026-10-28844
  25. 2026-10-29840
  26. 2026-11-01330
Rating
unchanged since 09.09
reviewsrating 4.60 · 26 readings
2026-09-09: appeared in the store2026-10-01: gained the good publisher record badge
  1. 2026-09-09reviews5rating4.60appeared in the store
  2. 2026-09-10reviews5rating4.60
  3. 2026-09-13reviews5rating4.60
  4. 2026-09-15reviews5rating4.60
  5. 2026-09-17reviews5rating4.60
  6. 2026-09-20reviews5rating4.60
  7. 2026-09-21reviews5rating4.60
  8. 2026-09-25reviews5rating4.60
  9. 2026-09-26reviews5rating4.60
  10. 2026-09-28reviews5rating4.60
  11. 2026-10-04reviews5rating4.60
  12. 2026-10-08reviews5rating4.60
  13. 2026-10-09reviews5rating4.60
  14. 2026-10-10reviews5rating4.60
  15. 2026-10-13reviews5rating4.60
  16. 2026-10-16reviews5rating4.60
  17. 2026-10-17reviews5rating4.60
  18. 2026-10-18reviews5rating4.60
  19. 2026-10-19reviews5rating4.60
  20. 2026-10-21reviews5rating4.60
  21. 2026-10-22reviews5rating4.60
  22. 2026-10-23reviews5rating4.60
  23. 2026-10-24reviews5rating4.60
  24. 2026-10-28reviews5rating4.60
  25. 2026-10-29reviews5rating4.60
  26. 2026-11-01reviews5rating4.60

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.

  • 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

  1. Gained the Established publisher badge
  2. Appeared in the store

Like this one

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

  1. TestFill Describes nearly the same job, smaller audience 277 users ★ 5.0
  2. Stripe Test Cards Helper Describes nearly the same job, smaller audience 708 users ★ 5.0
  3. PayFill Auto: Autofill Test Cards Describes nearly the same job, smaller audience 192 users ★ 5.0
  4. Test credit cards Describes nearly the same job, smaller audience 984 users ★ 4.0
  5. Stripe Buddy: one-click test cards Describes nearly the same job, smaller audience 52 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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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/kcpgoifdkafoccebpbfemmfpfieaooeo/badge.svg)](https://extops.dev/extensions/kcpgoifdkafoccebpbfemmfpfieaooeo)

HTML

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