Stable signalNo paid features detectedMedium-risk permissions
Pesticide icon

Pesticide

A CSS debugging tool that inserts outlines onto all elements to help with debugging layout issues

Users200KCurrent public install base
Rating4.0Store average score
Reviews145Public 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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1 assets
Trend

User growth trend

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User Growth Over Time

200K200K200K200K200K2026年7月15日2026年7月18日2026年7月21日Latest: 200K
Rating trend

7-day rating trend

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7-day rating change

Start
4.03
Latest
4.03
7-day rating change
0.00
3.933.984.034.084.132026年7月15日2026年7月18日2026年7月21日Latest: 4.03
2026年7月15日2026年7月21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
Size24.29KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

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This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.

This is a forked copy of Pesticide created originally by Adam Morse:

https://github.com/mrmrs/pesticide

This copy of Pesticide is created for students on the Complete Web Development Bootcamp by Dr. Angela Yu.

https://www.udemy.com/course/the-complete-web-development-bootcamp/

Reviews

Recent review snapshot

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Store average score4.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.7Average computed only from synced review bodies below
Reviews with text100Synced review bodies
Total ratings / reviews145Chrome Web Store public rating/review count

Store average score: 4.0. 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.

5
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25
Furqan CG2024年10月2日
5

Best Extension Ever, the reason we use chrome

Version 1.1Language en
2 helpful · 0 not helpful
patunola ibukun2024年9月29日
5

this extension has helped me right from the time i started with my journey in becoming a professional frontend developer. it will be sad to this extension removed from chrome🥲😟☹️😭 i pray the issues can be resolved soon.

Version 1.1Language en
7 helpful · 0 not helpful
Jonah Samuel2024年9月18日
5

I do hope that Google and the developers of this extension can resolve the issue soon enough. Th extension is very helpful and I see no reason why it should be removed from the chrome web store.

Version 1.1Language en
15 helpful · 0 not helpful
maker tolentino2024年9月5日
5

I've been using this for years as a front end developer, it's been incredibly helpful to spot layout and alignment issues, and to see what various elements in the UI are doing. I see that The Chrome Web Store is giving a notice with warning banner, that "This extension may soon no longer be supported because it doesn't follow best practices for Chrome extensions." I hope this can get fixed because it's one of the best browser tools for design and UI work. Thanks London App Brewery team!

Version 1.1Language en
20 helpful · 0 not helpful
Faiez Maalik2024年9月4日
5

Great tool for developers and front end designers including UI/UX teams.

Version 1.1Language en
4 helpful · 0 not helpful
Details Studio2024年9月1日
1

Hover doesn't work

Version 1.1Language en
2 helpful · 2 not helpful
Nkwi Akinimbom2024年8月28日
5

As a backend developer, I don't really know the ups and downs of the frontend box model and Pesticide has really helped me out with that. Big thanks!!

Version 1.1Language en
1 helpful · 0 not helpful
RVL2024年7月5日
5

Please also release this version on Firefox. I might have overlooked but could not find ANY version that does not collect data.... Thank you for the development of this, it helped me greatly in the past years.

Version 1.1Language en
4 helpful · 0 not helpful
Okezie Eric2024年6月26日
4

I've been using this awesome tool and its been working, but right now I'm developing a website(Local) but the tool doesn't work on it but it works on live websites.

Version 1.1Language en
6 helpful · 3 not helpful
Enoch Victor2024年6月25日
5

but I'm developing a website(Local) but the tool doesn't work on it but it works on live websites

Version 1.1Language en
2 helpful · 0 not helpful