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CSS Custom Web

Chrome extension by Kim Sun · Productivity · Developer

A Chrome extension in Productivity · Developer with 5 users, barely installed.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 3 screenshots

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

Users
5
Rating
not rated yet
Users, last 16 days
+1
Version
1.0.0
Updated in the store
2026-06-14
Published
2026-06-14
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
+1 since 31.08
4-6 · 7 readings
  1. 2026-08-314
  2. 2026-09-035
  3. 2026-09-044
  4. 2026-09-056
  5. 2026-09-075
  6. 2026-09-104
  7. 2026-09-155
Users
+1 since 31.08
4-6 · 7 readings
  1. 2026-08-314
  2. 2026-09-035
  3. 2026-09-044
  4. 2026-09-056
  5. 2026-09-075
  6. 2026-09-104
  7. 2026-09-155

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

  • See the address and title of every tab you have open tabs
  • 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

Kim Sun publishes 7 listings we track, 54 users between them.

  1. Paste & Scan QR Kim Sun · Productivity · Tools · published 2026-06-16 15 users
  2. YouTube Channel Queue Pro Kim Sun · Productivity · Tools · published 2026-06-19 8 users
  3. Price Calc Kim Sun · Productivity · Tools · published 2026-06-12 8 users
Show 3 more from this publisher
  1. Table from Excel Kim Sun · Productivity · Tools · published 2026-06-18 7 users
  2. KIM News Card Generator Kim Sun · Lifestyle · Art · published 2026-06-11 6 users
  3. IMAGE TO TEXT Kim Sun · Productivity · Tools · published 2026-06-18 5 users

Like this one

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

  1. Quick CSS Describes nearly the same job, smaller audience 7 users
  2. Ultimate CSS Injector Describes nearly the same job, smaller audience 154 users ★ 5.0
  3. Customizador de CSS Describes nearly the same job, smaller audience 75 users ★ 4.5
  4. style customizer Describes nearly the same job, smaller audience 7 users
  5. Smart Stylez: Live Web Styler & CSS Helper Describes nearly the same job, smaller audience 10 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.

Is this your extension?

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See what the panel does

Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.