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WhatTheCSS

Chrome extension by Sandipan Mukherjee · Productivity · Developer

  • Established publisher
  • Trader

A Chrome extension in Productivity · Developer with 108 users, barely installed. Audience over the last 30 days: +48.

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

What the developer says, and 4 screenshots

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

Users
108
Rating
not rated yet
Users, last 30 days
+48
Version
1.0.0
Updated in the store
2026-07-10
Published
2026-07-10
Manifest
V3
Browser access
5 permissions

How it has moved

Users
+48 since 01.10
60-108 · 16 readings
2026-10-01: gained the good publisher record badge
  1. 2026-10-0568
  2. 2026-10-0867
  3. 2026-10-0974
  4. 2026-10-1073
  5. 2026-10-1175
  6. 2026-10-1377
  7. 2026-10-1686
  8. 2026-10-1887
  9. 2026-10-1991
  10. 2026-10-2190
  11. 2026-10-2292
  12. 2026-10-2393
  13. 2026-10-2498
  14. 2026-10-2896
  15. 2026-10-29108
  16. 2026-10-31108
Users
+81 since 01.09
27-108 · 30 readings
2026-10-01: gained the good publisher record badge
  1. 2026-09-0127
  2. 2026-09-0228
  3. 2026-09-0331
  4. 2026-09-0430
  5. 2026-09-0632
  6. 2026-09-0734
  7. 2026-09-0836
  8. 2026-09-1341
  9. 2026-09-1543
  10. 2026-09-1745
  11. 2026-09-2050
  12. 2026-09-2151
  13. 2026-09-2555
  14. 2026-09-2660
  15. 2026-10-0568
  16. 2026-10-0867
  17. 2026-10-0974
  18. 2026-10-1073
  19. 2026-10-1175
  20. 2026-10-1377
  21. 2026-10-1686
  22. 2026-10-1887
  23. 2026-10-1991
  24. 2026-10-2190
  25. 2026-10-2292
  26. 2026-10-2393
  27. 2026-10-2498
  28. 2026-10-2896
  29. 2026-10-29108
  30. 2026-10-31108

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
  • Schedule work to run later alarms
Show the remaining 2

The full permission history for this extension

What changed recently

  1. Gained the Established publisher badge

The publisher

Sandipan Mukherjee. Listed website: whatthecss.dev.

Like this one

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

  1. CSS Viewer Describes nearly the same job, smaller audience 488 users ★ 5.0
  2. CSS Detective Describes nearly the same job, smaller audience 3 users ★ 5.0
  3. StyleSnap — Instant CSS Inspector Describes nearly the same job, smaller audience 9 users
  4. CSS Inspector Pro Describes nearly the same job, smaller audience 3 users
  5. Coloracci: CSS Inspector, Colors & AI Specs Describes nearly the same job, smaller audience 70 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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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/kcckokelnjdfgncbndjpimdhomababla/badge.svg)](https://extops.dev/extensions/kcckokelnjdfgncbndjpimdhomababla)

HTML

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