CSS Selector Tester icon

CSS Selector Tester

by simondev · Developer Tools
FeaturedManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Validate your CSS selector visually with ease.

Users
302
+18 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#54K
#45K among extensions
Version
1.0.0
updated 6 Dec 2023

Users

monthly, 3 years
0178355Dec 2023Jun 2025Oct 2026
Latest, 15 Oct 2026: 302 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
001Dec 2023Jun 2025Oct 2026
Latest, 15 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About CSS Selector Tester

Easily validate your CSS selector. CSS Selector Tester makes it easy to identify your elements matching a given CSS selector. Clean, simple and intuitive to use. ✓ Highlights elements on the fly while typing ✓ Total matches based on the selector ✓ Pause or resume the highlighting of elements Useful plugin for web design or web scraping. Currently does not support the \"HTML\" Element or \"*\" selector. This extension is based on the work of Patrick Simpson.

Growth

WindowUsersChangeRatingsRating
7 days+2+0.7%00.00
30 days+18+6.3%00.00
6 months+3+1.0%00.00
1 year−40−11.7%00.00

Version history

1 versions recorded
1.0.06 Dec 2023

Details

Category
Developer Tools
First seen
6 Dec 2023
Size
120 KB
Languages
en
Pricing
Free
Extension ID
gafpmbhfhknmigcacfokobfbkikhkhnp

Permissions and risk

Minimal riskimpact 3, likelihood 0
Permissions
tabsactiveTabscripting
Site access
<all_urls>
Can read and change data on every website you visit.

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