JS and CSS snippets for web

Run peristent JavaScript and CSS code snippets on any website.

As of June 2026, JS and CSS snippets for web has 29 users and a 5.00/5 rating from 2 reviews in the Workflow & Planning category.

Usersup 141.7 percent+141.7%
29
29
Ratingno change0%
5.00
2 reviews
Reviewsup 100.0 percent+100.0%
2
Version
1.0.0
Manifest V3

History

7 snapshots

Tracking since Apr 8, 2026.

31.5220.59.48Apr 8, 2026Jun 4, 2026
View as table
DateUsersRatingReviewsVersion
Apr 8, 2026125.0011.0.0
Apr 19, 2026115.0011.0.0
Apr 29, 2026165.0011.0.0
May 9, 2026195.0011.0.0
May 17, 2026205.0011.0.0
May 25, 2026265.0011.0.0
Jun 4, 2026305.0021.0.0
Now295.0021.0.0

Permissions & access

Permissions
storagescriptingtabs
Host access
<all_urls>

Screenshots

JS and CSS snippets for web screenshot 1JS and CSS snippets for web screenshot 2

About

Snippet Injector lets you add your own code to websites based on URL rules. Create and manage snippets that run automatically when pages load. Perfect for developers, QA engineers, power users, and anyone who wants to customize websites or test scripts.

Key Features

Inject JavaScript or CSS: Run code in the page’s main world or isolated CSS safely.

Flexible URL rules: Apply snippets to all websites, a single domain, exact URLs, or custom regular expressions.

Enable or disable snippets: Turn snippets on or off without deleting them.

Persistent across reloads: Snippets automatically run when pages reload.

Dynamic page support: Works with modern single-page apps (SPAs) and iframe-based sites.

Built-in code editor: Write and edit snippets directly in the popup using a clean editor interface.

Who It’s For
- Web developers testing or debugging code.
- QA engineers automating workflows.
- Power users customizing web apps or dashboards.
- Anyone looking for a lightweight alternative to Tampermonkey.

Permissions & Privacy
- Tabs: Check the active tab URL to run matching snippets.
- Storage: Save your snippets and settings locally.
- Scripting: Inject JavaScript and CSS into websites safely.
- No data is collected, all code runs locally, and your snippets stay private.
- Take control of your browser. Customize websites your way with Snippet Injector.

Technical

Version
1.0.0
Manifest
V3
Size
1.01MiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
emfeefeailjadpdgjlocipnlmikdjlkn
Developer ID
udb9b4c27bd49d14a66c351db3baefae4
Developer Email
[email protected]
Created
Jan 15, 2026
Last Updated (Store)
Jan 15, 2026
Last Scraped
Jun 4, 2026
Website
Support URL

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Data sourced from the Chrome Web Store · last verified Jun 4, 2026.