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Color Blindness Simulator

Chrome extension by Color Blindness Test · Productivity · Education

  • Established publisher

A Chrome extension in Productivity · Education with 158 users, barely installed. Audience over the last 30 days: +3.

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
158
Rating
5.0 (1 ratings)
Users, last 30 days
+3
Rating, last 30 days
Steady over 30 days
Version
1.1
Updated in the store
2025-06-02
Published
2025-06-02
Manifest
V3
Browser access
3 permissions

How it has moved

Users
+3 since 01.10
147-158 · 17 readings
  1. 2026-10-04151
  2. 2026-10-08153
  3. 2026-10-09147
  4. 2026-10-10147
  5. 2026-10-13151
  6. 2026-10-16154
  7. 2026-10-17156
  8. 2026-10-18152
  9. 2026-10-19149
  10. 2026-10-21151
  11. 2026-10-22154
  12. 2026-10-23152
  13. 2026-10-24152
  14. 2026-10-25153
  15. 2026-10-28156
  16. 2026-10-29158
  17. 2026-10-31158
Rating
unchanged since 01.10
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. 2026-10-13reviews1rating5.00
  6. 2026-10-16reviews1rating5.00
  7. 2026-10-17reviews1rating5.00
  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. 2026-10-31reviews1rating5.00
Users
+9 since 31.08
142-158 · 29 readings
  1. 2026-08-31149
  2. 2026-09-02145
  3. 2026-09-04152
  4. 2026-09-06151
  5. 2026-09-07152
  6. 2026-09-10154
  7. 2026-09-13148
  8. 2026-09-17149
  9. 2026-09-21142
  10. 2026-09-22145
  11. 2026-09-25153
  12. 2026-09-28155
  13. 2026-10-04151
  14. 2026-10-08153
  15. 2026-10-09147
  16. 2026-10-10147
  17. 2026-10-13151
  18. 2026-10-16154
  19. 2026-10-17156
  20. 2026-10-18152
  21. 2026-10-19149
  22. 2026-10-21151
  23. 2026-10-22154
  24. 2026-10-23152
  25. 2026-10-24152
  26. 2026-10-25153
  27. 2026-10-28156
  28. 2026-10-29158
  29. 2026-10-31158
Rating
unchanged since 31.08
reviewsrating 5.00 · 29 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-10reviews1rating5.00
  7. 2026-09-13reviews1rating5.00
  8. 2026-09-17reviews1rating5.00
  9. 2026-09-21reviews1rating5.00
  10. 2026-09-22reviews1rating5.00
  11. 2026-09-25reviews1rating5.00
  12. 2026-09-28reviews1rating5.00
  13. 2026-10-04reviews1rating5.00
  14. 2026-10-08reviews1rating5.00
  15. 2026-10-09reviews1rating5.00
  16. 2026-10-10reviews1rating5.00
  17. 2026-10-13reviews1rating5.00
  18. 2026-10-16reviews1rating5.00
  19. 2026-10-17reviews1rating5.00
  20. 2026-10-18reviews1rating5.00
  21. 2026-10-19reviews1rating5.00
  22. 2026-10-21reviews1rating5.00
  23. 2026-10-22reviews1rating5.00
  24. 2026-10-23reviews1rating5.00
  25. 2026-10-24reviews1rating5.00
  26. 2026-10-25reviews1rating5.00
  27. 2026-10-28reviews1rating5.00
  28. 2026-10-29reviews1rating5.00
  29. 2026-10-31reviews1rating5.00

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.

  • 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

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

The publisher

Color Blindness Test publishes 2 listings we track, 527 users between them. Listed website: colorblindnesstest.org.

  1. Color Blind Test | Color Blindness Test Color Blindness Test · Lifestyle · Social · published 2021-12-22 369 users

Like this one

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

  1. Colorblindly Describes nearly the same job, with an established audience 90k users ★ 3.5
  2. Color Blindness Simulator Describes nearly the same job, smaller audience 183 users
  3. dichroma — color vision simulator & audit Describes nearly the same job, smaller audience 10 users
  4. Color Blindness Simulator Describes nearly the same job, smaller audience 55 users ★ 5.0
  5. Colorblind Filter Describes nearly the same job, smaller audience 92 users ★ 5.0

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/kbfcdajgafkfbphmgfhnkfnoagfaonem/badge.svg)](https://extops.dev/extensions/kbfcdajgafkfbphmgfhnkfnoagfaonem)

HTML

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