Moonly - javascript and css injector icon

Moonly - javascript and css injector

by Vladyslav Tkachov · vladyslav-tkachov.dev · Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Inject javascript and css into pages dynamically.

Users
795
+10 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
6
+1 in 30 days
Store rank
#35K
#30K among extensions
Version
1.3
updated 16 Jun 2026

Users

monthly, 2 years
0424848Feb 2025Jan 2026Oct 2026
Latest, 15 Oct 2026: 795 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
036Feb 2025Jan 2026Oct 2026
Latest, 15 Oct 2026: 6 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 Moonly - javascript and css injector

Moonly – lets you inject custom JavaScript and CSS into any web page. Create scripts, set conditions for when they run, and manage everything through a clean, built-in editor. What you can do: - Inject JavaScript or CSS — write either in a full-featured code editor (syntax highlighting, line numbers, bracket matching, and a choice of editor themes) - Run scripts manually with one click from the popup, or automatically when a page matches your conditions - Match pages by exact URL, substring, or regex pattern - Control injection timing — run JavaScript before the page loads or after (CSS is applied early, with no flash of unstyled content) - Organize your library — search, duplicate, reorder, and enable/disable scripts - Import and export scripts as JSON, one at a time or all at once, for backup or sharing Built for developers, testers, and power users who want to automate repetitive tasks, test page behavior, or customize their browsing experience. Permissions: - Tabs — detect the active page for script matching - Scripting — inject your JavaScript and CSS into pages - Storage — save your scripts locally on your device Scripts are stored entirely on your device and never sent anywhere. No data is collected. Use responsibly — only run scripts you trust.

Growth

WindowUsersChangeRatingsRating
7 days+28+3.7%00.00
30 days+10+1.3%+10.00
6 months+46+6.1%+10.00
1 year+240+43.2%+30.00

Chrome Web Store search rankings

Where Moonly - javascript and css injector appears when people search the store, with the 30 day change
Search phrasePosition30 days
javascript#120
inject#16+2
css editor#43−4

Version history

4 versions recorded
1.31 Jun 2026
1.24 Apr 2026
1.128 Mar 2026
1.019 Feb 2025

Details

Category
Developer Tools
First seen
19 Feb 2025
Size
183 KB
Languages
en-US
Pricing
Free
Support
vladyslav-tkachov.dev
Extension ID
ojifbchickiodflpjdgpafeljoiifkpn

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
tabsscriptingstorageactiveTab
Site access
<all_urls>
Can read and change data on every website you visit.

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