CSS Debugger icon

CSS Debugger

Instantly debug CSS layouts by adding colorful outlines to HTML elements. Easily identify and inspect elements with a simple click.

Users547
Rating5.0
Reviews5
Manifest versionV3
7-day growth-70
7-day growth rate-11.3%
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User Growth Over Time

5435565705835972026年5月29日2026年6月1日2026年6月4日Latest: 547
Rating trend

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30-day rating change

Start
5.00
Latest
5.00
30-day rating change
0.00
4.904.955.005.055.102026年5月29日2026年6月1日2026年6月4日Latest: 5.00
2026年5月29日2026年6月4日
Growth overview

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1-day growthDeclining
-3-0.55%
7-day growthDeclining
-70-11.3%
30-day growthDeclining
-61-10%
Technical snapshot

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Version1.0
ManifestV3
Size8.06KiB
Languages1English (United States)
Published
Store updated
Last crawled
English (United States)
Overview

Product summary

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This extension, is designed to simplify CSS debugging and layout inspection. It instantly adds colorful outlines to HTML elements, making it easy to visualize and identify different elements on a webpage.

The extension solves the common problem of struggling to understand the structure and layout of a website. Instead of manually inspecting elements in the browser's developer tools, this extension provides a quick visual overview of the page's underlying structure.

When the extension's icon is clicked, it injects a script into the current tab that toggles the CSS outlines. The script uses predefined color mappings for different HTML elements, and it dynamically generates and injects CSS rules to apply the outlines.

It functions similarly to the old Pesticide extension but is compatible with Manifest V3. The source code contains no third-party dependencies.

🌐 Open source repository: https://github.com/aydgn/css-debugger-extension

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