Pesticide - Advanced CSS Debugger

Not only inserts outlines (without background color) on all elements, but also inspects size and layout. CSS is awesome!

As of June 2026, Pesticide - Advanced CSS Debugger has 20,000 users and a 4.91/5 rating from 92 reviews in the Developer Tools category.

Usersno change0%
20.0K
20,000
Ratingup 0.2 percent+0.2%
4.91
92 reviews
Reviewsup 12.2 percent+12.2%
92
Version
3.2.0
Manifest V3

History

7 snapshots

Tracking since Apr 1, 2026.

30.8K25.0K19.2KApr 1, 2026Jun 20, 2026
View as table
DateUsersRatingReviewsVersion
Apr 1, 202620.0K4.90823.2.0
Apr 5, 202620.0K4.90833.2.0
Apr 16, 202630.0K4.90833.2.0
May 11, 202620.0K4.90843.2.0
May 23, 202620.0K4.91853.2.0
Jun 1, 202620.0K4.91883.2.0
Jun 20, 202620.0K4.91893.2.0
Now20.0K4.91923.2.0

Permissions & access

Permissions
activeTabscriptingcontextMenusstorage
Host access
None declared

Screenshots

Pesticide - Advanced CSS Debugger screenshot 1Pesticide - Advanced CSS Debugger screenshot 2Pesticide - Advanced CSS Debugger screenshot 3Pesticide - Advanced CSS Debugger screenshot 4Pesticide - Advanced CSS Debugger screenshot 5

About

Pesticide 3.2 is an advanced CSS debugger for Chrome that helps you inspect layout, spacing, typography, and computed styles directly on the page.

Turn it on and hover any element to open a floating inspector with the details you actually need:

- Element tag, id, and classes
- DOM path
- Client / offset / scroll dimensions
- Full box model: margin, border, padding, radius, and content size
- Font inspection
- Computed CSS properties
- Copy CSS output in Tailwind, inline, or block format

What makes Pesticide useful:

- Outline-based debugging without shifting layout
- Click to pin the current element while comparing spacing and styles
- Resizable, draggable inspector overlay
- Per-site saved panel position and size
- Options page to show or hide inspector sections
- Quick keyboard control with Ctrl + Shift + P

Pesticide is built for front-end developers, designers, and anyone debugging tricky CSS. It gives you a fast visual way to understand how a page is built without opening heavyweight tools for every small layout check.

Version 3.2 highlights:

- Better floating inspector workflow
- Copy CSS panel with Tailwind, inline, and block output
- Font and computed-style inspection
- Configurable inspector sections from the options page

If you want a lightweight Chrome extension for faster CSS debugging, Pesticide is built for that job.

Technical

Version
3.2.0
Manifest
V3
Size
169KiB
Min Chrome
88
Languages
51
Featured
No

Metadata

ID
jeebpgmphhagpecfiophljpkhncoajcg
Developer ID
u6a3d64722daa34ed4ef0a93798122841
Developer Email
[email protected]
Created
Oct 29, 2024
Last Updated (Store)
Mar 26, 2026
Last Scraped
Jun 20, 2026
Website
extension.rocks
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 20, 2026.