Pesticide (without hover bar)

A CSS debugging tool that outlines all page elements to help identify and fix layout issues.

As of May 2026, Pesticide (without hover bar) has 937 users and a 5.00/5 rating from 4 reviews in the Developer Tools category.

Usersup 10.4 percent+10.4%
937
937
Ratingno change0%
5.00
4 reviews
Reviewsno change0%
4
Version
3.0.0
Manifest V3

History

4 snapshots

Tracking since Apr 20, 2026.

1.0K920.5837.56Apr 20, 2026May 30, 2026
View as table
DateUsersRatingReviewsVersion
Apr 20, 20268495.0043.0.0
May 6, 20268725.0043.0.0
May 17, 20269475.0043.0.0
May 30, 20269925.0043.0.0
Now9375.0043.0.0

Permissions & access

Permissions
activeTabscripting
Host access
None declared

Screenshots

Pesticide (without hover bar) screenshot 1

About

Pesticide is a Chrome extension designed to help you visualize the layout and structure of any webpage by outlining every HTML element. It’s a powerful tool for debugging CSS and understanding how elements are nested on the page.

When activated, Pesticide injects custom CSS into the current tab, applying colored outlines to all elements based on their type. This makes it easy to identify spacing, nesting, and potential layout issues at a glance.

✨ Features

✅ One-click toggle to enable or disable visual outlines without needing page reload  
🎨 Faithfully reflects the original website's CSS — no hover effects, no color changes, no shadows  
🌍 Works on any website  
🔐 Built using Manifest V3 for enhanced security and performance  
🚫 No interference with site functionality or user interactions  

🚀 How to use

1. Install the extension from the Chrome Web Store or load it unpacked
2. Click the Pesticide icon in your toolbar to toggle element outlines
3. Click again to turn them off

Official Website: https://pesticide.michaelkolesidis.com/
Source Code: https://github.com/michaelkolesidis/pesticide-without-hover-bar

Pesticide (without hover bar) is free software licensed under the GNU Affero General Public License v3.0.

Technical

Version
3.0.0
Manifest
V3
Size
48.84KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
ibaidbcedfbojihflojeekadmebnlbpb
Developer ID
u9f6c0d222f0255bac30b580c110efc75
Developer Email
[email protected]
Created
Jul 15, 2025
Last Updated (Store)
Jul 15, 2025
Last Scraped
May 30, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified May 30, 2026.