Developer Tools
Stable signalUnknownMedium-risk permissions
CSS Inject icon

CSS Inject

Inject custom CSS into any website

Users25Current public install base
Rating--Store average score
Reviews0Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

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Trend

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User Growth Over Time

23232425252026年7月16日2026年7月19日2026年7月22日Latest: 25
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1-day growthFlat
00%
7-day growthFlat
00%
30-day growthDeclining
-1-4%
Technical snapshot

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Version1.0.1
ManifestV3
Size137KiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

Product summary

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An extension to inject custom CSS into any site you want and have it be saved. The CSS will persist across sessions and your preferences will be saved.

The best part of this extension is that it has minimal permissions, which reduces the risk of this being malware or being used in a trojan horse attack. Basically other extensions that need to inject javascript onto the page can also track your browsing history. This doesn't, because I only ask for permissions at runtime. This leads to a more secure experience if the only thing you want to do is inejct CSS.

The source code is at https://github.com/aadilmallick/css-injector

**Current features**

- Persistent injected custom CSS

- Remove annoying toasts with an option in the options page

Reviews

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Store average score--Chrome Web Store aggregate rating, including ratings without synced review text
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Reviews with text0Synced review bodies
Total ratings / reviews0Chrome Web Store public rating/review count

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