Font Finder
Developer Tools
An easy-to-use font inspector to get CSS styles of the selected element
Users
400K
Rating
4.5
Reviews
228
7D Growth
0|0%
Stable signalNo paid features detectedMedium-risk permissions
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
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1 assetsPesticide Media preview
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Start
4.03
Latest
4.03
7-day rating change
0.00
2026年7月15日2026年7月21日
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Version2.0.0
ManifestV3
Size24.29KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
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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
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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.
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Great tool. Thank you!!!
Here because of Angela
Very Good Extension love it.Thanks Angela Yu
for those whose is not working. go to manage extension and scroll down untill you see "Allow access to file URLs" turn it on, and it will work
It's working for me just fine. Such a prime little tool. It's like opening the curtains on your sites scaffolding so you can see everything! way better than putting red borders on everything manually in your css file. I'm obviously on chrome. And I'm using a new Mac studio.
Not working for me as well
Do not working on my chrome, only on my edge :(
Id' love to see it show me classes for the deployed version too. We have to kill this production bugs.
super useful extension especially if you want to know why your layout doesn't look as you meant it to be! Thank you for it!
As a front-end developer, I've found the Pesticide Chrome extension to be an invaluable tool for debugging and refining web layouts. It's incredibly simple to use – just click on the extension's icon in the toolbar, and Pesticide will outline every element on the page with a unique color, making it easy to identify and visualize their placement. This visual representation is particularly helpful for identifying alignment and spacing issues, ensuring that each element is positioned correctly and contributes to a polished overall design.