Custom CSS Injector – custom styles per domain

Inject custom CSS per domain. A minimalist, ultra-efficient extension to style any website without bloat or heavy features.

As of June 2026, Custom CSS Injector – custom styles per domain has 110 users and a 5.00/5 rating from 2 reviews in the Functionality & UI category.

Usersup 19.6 percent+19.6%
110
110
Ratingno change0%
5.00
2 reviews
Reviewsno change0%
2
Version
2.1.2
Manifest V3
90-day change · In the last 90 days this extension 2 version updates.

History

10 snapshots

Tracking since Apr 1, 2026.

122.2410689.76Apr 1, 2026Jun 6, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 2026925.0022.0.1
Apr 16, 2026945.0022.0.1
Apr 24, 20261015.0022.0.1
May 1, 20261035.0022.0.1
May 7, 20261095.0022.1.1
May 12, 20261085.0022.1.1
May 18, 20261155.0022.1.1
May 24, 20261165.0022.1.1
May 31, 20261205.0022.1.2
Jun 6, 20261145.0022.1.2
Now1105.0022.1.2

Permissions & access

Permissions
storagetabsscriptingactiveTab
Host access
None declared

Screenshots

Custom CSS Injector – custom styles per domain screenshot 1

About

Inject custom CSS on any website, per domain – with a minimalist, low-overhead extension that just works.

Custom CSS Injector is a practical tool for developers, designers, and power users who want to personalize any site in seconds, without heavy devtools or bloated extensions.

KEY FEATURES
- Per-domain rules: write custom CSS per domain and have it auto-applied every time you visit the site.
- Ultra lightweight: one of the smallest extensions in the store, carefully built to use minimal memory, CPU and battery.
- Clean editor: focused, distraction-free UI designed for fast edits and quick tweaks.
- Smart application: styles are applied on page load and across tabs/frames so your changes stay consistent as you browse.
- One-click toggle: instantly enable or disable your custom styles when you need to compare with the original site.
- One-click reset: clear a domain's custom styles in seconds if you want to start fresh.

MINIMALIST BUT POWERFUL
Custom CSS Injector is intentionally small and efficient, with no trackers, no ads, and no unnecessary UI.
Every feature is focused on one job: giving you reliable, per-site CSS overrides that feel invisible until you need them.

Instead of a cluttered interface with dozens of panels, you get a fast, simple editor that lets you jump straight to the CSS and see the result on the page.

PERFECT FOR
- Developers fine-tuning layouts, testing CSS fixes, or overriding styles on staging and production.
- Designers adjusting spacing, typography or colors on live sites to explore ideas quickly.
- Power users who want to hide distracting elements, darken bright pages, or make any site feel more comfortable to use.

WHY THIS EXTENSION
- Minimalist: no unnecessary background scripts, no complex onboarding, no feature overload.
- Efficient: designed to stay light on resources, even with many domains configured.
- Focused: does one thing extremely well – custom CSS per domain – instead of trying to be an all-in-one toolbox.

Whether you just want to hide a single banner or maintain a long list of custom tweaks across your favorite sites, Custom CSS Injector gives you a fast, reliable and low-friction way to do it.

Built on Chrome's modern Scripting API for stable, predictable behavior on modern websites.

Technical

Version
2.1.2
Manifest
V3
Size
138KiB
Min Chrome
111
Languages
1
Featured
No

Metadata

ID
jafljompklilfgjfcdcmmkgdamolfpbi
Developer ID
uc909bc869c8672a912ca8e0a524da458
Developer Email
[email protected]
Created
May 22, 2025
Last Updated (Store)
May 21, 2026
Last Scraped
Jun 6, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 6, 2026.