Debug CSS

When enabled adds outline to all elements on the page, Hold Ctrl and hover to get more detail

As of May 2026, Debug CSS has 10,000 users and a 4.43/5 rating from 46 reviews in the Developer Tools category.

Usersno change0%
10.0K
10,000
Ratingno change0%
4.43
46 reviews
Reviewsno change0%
46
Version
1.5.12
Manifest V3

Permissions & access

Permissions
activeTabscripting
Host access
None declared

Screenshots

Debug CSS screenshot 1

About

# Release notes

In the latest version we have addressed the issue where the extension stopped working after mandatory `manifest_version upgrage` from Google.

also, we have addressed the issue in which user were unable to see the styling for the bottom most element of the page. we have added tooltip feature which gives a basic styles in tooltip itself.

# Debug CSS

A lightweight extension for Google chrome to show outline of all the element exist on page.

while working on web page development the one of the difficult part is to position the element as required and check which element affecting the other one.

This chrome extension allows user to see outline on every element of the page. Hold the keyboard Ctrl button and hover element it will show the element details along with the value.

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# Usage

Post installation simply click on the extension icon to turn it On or Off.

If you are a keyboard shortcut lover like me simply hit `Alt+Shift+C ` key to toggle the extension.


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# How it works?

This extension works on CSS outline attribute:

add the below code snippet in any CSS of a web page 


`
  * {
	outline: 1px solid red;
  }`

The extension does the same the only thing is; it gives different color to different element(s) while the code snippet adds red outline to every element.  

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# Other work and repository

[A lightweight customizable plugin for jQuery to show horizontal length in form of vertical progress bar.](https://github.com/pranayjoshicse/VerLim.js)


[listed on jqueryscript.net](https://www.jqueryscript.net/other/Simple-Custom-Reading-Indicator-with-jQuery-VerLim-js.html)

[Demo](https://www.jqueryscript.net/demo/Simple-Custom-Reading-Indicator-with-jQuery-VerLim-js/)


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# More about me

[twitter.](https://twitter.com/pranayjoshicse)
[about me.](https://about.me/pranayjoshi)

Technical

Version
1.5.12
Manifest
V3
Size
17.52KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
igiofjnckcagmjgdoaakafngegecjnkj
Developer ID
u8c3c83a011c4a75466b699f8b5734ef0
Developer Email
[email protected]
Created
Sep 12, 2018
Last Updated (Store)
Mar 14, 2025
Last Scraped
May 25, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified May 25, 2026.