User JavaScript and CSS
Developer Tools
User JavaScript and CSS on any website
Users
200K
Rating
4.8
Reviews
657
7D Growth
0|0%
Stable signalUnknownMedium-risk permissions
Live editor for CSS, Less & Sass - Magic CSS
Live preview of CSS/Less/Sass code changes. Auto-save file, autocomplete, Less/Sass to CSS, beautify, CSS reloader, lint, ...
Users60KCurrent public install base
Rating4.6Store average score
Reviews280Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
2 assetsLive editor for CSS, Less & Sass - Magic CSS Media preview
Trend
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7-day rating change
Start
4.63
Latest
4.63
7-day rating change
0.00
2026年7月13日2026年7月19日
Growth overview
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1-day growthFlat
00%7-day growthFlat
00%30-day growthDeclining
-10K-14.3%Technical snapshot
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Version8.22.5
ManifestV3
Size2.15MiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
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Run this extension and start writing your CSS/Less/Sass code which gets applied immediately. The code you write will be saved in the browser extension's storage space or the site's local storage.
Featuring:
✓ Live editor for CSS/Less/Sass code - Preview changes as you write code
✓ Autocomplete
✓ Live edit CSS files and auto-save on file system
✓ Open code editor in external window
Reviews
Recent review snapshot
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Store average score4.6Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.6Average computed only from synced review bodies below
Reviews with text184Synced review bodies
Total ratings / reviews280Chrome Web Store public rating/review count
Store average score: 4.6. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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A fantastic plugin that I have been using for 6+ months now. I've been waiting for some "gotchas" but this extension has yet to disappoint. Absolutely brilliant - thank you !!
По сравнению с другими подобными расширениями, этот лучший выбор. Но не хватает контекстного подбора параметров стилей uwu.
Works really well overall. The only issue I have is when editing in an external window, the plugin has to be loaded again after refreshing the page I'm styling, and then I have to close the old editor. That quickly gets tedious.
Works wonderful, has a lot of options and handy tools. Can only recommend!
I use it in all of my projects and love it!
rất hay
very helpful
I mostly love this extension, and have been using it for a few years with no issues, though now that I'm sometimes working on a secondary computer I'm going to have to hunt down an alternative extension. There's no way to sync custom code so it's accessible from multiple computers or across different Chromium-based browsers, and worse, there's no way I've been able to find to view all of the code you've added -- if you want to copy it from one computer to another, you have to remember all the websites you modified, then go to each one individually so you can access and copy its custom code. On the plus side, the extension is lightweight and easy to use, and has been stable and reliable in my experience. It also has a feature that I haven't been able to find in any other code injector plugin so far: drag-and-drop functionality for the code window. As I'm trying out alternative plugins, I'm really missing the ability to move the window so it's not blocking a part of the page that I'm trying to modify.
It's really nice to be able to do css developing with less directly on the browser
Це просто фантастичний продукт, я спробував чимало додатків, цей найкращий!