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Live CSS Tester icon

Live CSS Tester

Easily inject CSS into a webpage for testing

Users2KCurrent public install base
Rating3.9Store average score
Reviews7Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview

Live CSS Tester Media preview

4 assets
Trend

User growth trend

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User Growth Over Time

2K2K2K2K2K2026年7月13日2026年7月16日2026年7月19日Latest: 2K
Rating trend

7-day rating trend

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7-day rating change

Start
3.86
Latest
3.86
7-day rating change
0.00
3.763.813.863.913.962026年7月13日2026年7月16日2026年7月19日Latest: 3.86
2026年7月13日2026年7月19日
Growth overview

Daily, weekly, and monthly growth

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1-day growthFlat
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7-day growthFlat
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30-day growthFlat
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Technical snapshot

Version, languages, and crawl freshness

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Version2.0.0
ManifestV3
Size147KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

This plugin allows you to easily add CSS into a webpage for testing. The editor is available through a popup or the devtools.

Features:

* Enable/Disable CSS

* Download CSS

* Upload CSS

* Dark mode

Reviews

Recent review snapshot

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Store average score3.9Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.7Average computed only from synced review bodies below
Reviews with text6Synced review bodies
Total ratings / reviews7Chrome Web Store public rating/review count

Store average score: 3.9. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

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Сергей Кореневский2026年4月29日
1

думал стили для одного сайта, но нет, стили работают сразу для всех сайтов.

Version 2.0.0Language ru
シェルテッドキッド2024年11月24日
1

CSS自体は書けるが、自動でドメイン指定が適用されない。 adBlockの代替としてスタイルエディタを入れていたが、後続アプリとしては不十分。

Version 2.0.0Language ja
Pham Pham2023年5月4日
5

it works <3

Language en
Anderson Nogueira Silverio2022年9月8日
5

Excellent Tool. I am recommending it to my co-workers.

Language en
Ofex2021年3月3日
5

Great extension , Thank you!

Language en
Robert Smith2020年7月5日
5

Hey, thanks for making this! This specific extension is the only css editor that a) "pops up" rather than opens a new window, b) is clean (nice), and; c) works for me! All the other ones don't—which is weird. Again, thanks a bunch! P.S. I really appreciate the "Add to Devtools" option. How hard would it be to get your extension into the bottom section of the devtools (Where the Styles, Event Listeners, & DOM Breakpoints are), rather than the top section? Thanks again!

Language en