Add CSS - Custom Style Injector

by oray · kamerakademi.com · Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Very lightweight extension to add CSS into websites. Inject custom CSS into any domain instantly.

Users

475

+111 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#44K

#37K among extensions

Version

1.0.1

updated 9 Jan 2026

Users

monthly, 10 months

Latest, 16 Oct 2026: 475 usersMove the mouse over the chart for any month

Ratings count

monthly, 10 months

Latest, 16 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Add CSS - Custom Style Injector

Add CSS - Custom Style Injector is a powerful, lightweight, and developer-friendly browser extension that allows you to inject custom CSS styles into any domain or specific URL. Features: Toggle with Ease: Quickly enable or disable individual styles, or use the Global Toggle to turn off all customizations at once. Search & Filter: Easily find your custom styles among dozens of entries using the built-in search bar. Import & Export: Move your custom styles between different browsers or backup your data with a single click via JSON files. Privacy Focused: No tracking, no external servers. Your custom styles are stored locally in your browser.