Custom Style Script
Developer Tools
Add Custom JavaScript (JS) Code or Styles (CSS) to any page.
Users
10K
Rating
4.2
Reviews
42
7D Growth
0|0%
Stable signalNo paid features detectedMedium-risk permissions
User JavaScript and CSS
User JavaScript and CSS on any website
Users200KCurrent public install base
Rating4.8Store average score
Reviews657Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
4 assetsUser JavaScript and CSS Media preview
Trend
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7-day rating change
Start
4.75
Latest
4.75
7-day rating change
0.00
2026年7月15日2026年7月21日
Growth overview
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1-day growthFlat
00%7-day growthFlat
00%30-day growthFlat
00%Technical snapshot
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Version3.1.2
ManifestV3
Size1.72MiB
Languages2English / русский
Published
Store updated
Last crawled
Englishрусский
Overview
Product summary
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Userscript's and userstyle's — simple extension to inject own JavaScript or CSS rules to any page.
Features:
- Instant execution
- Custom libs include
- URL masking allows use one script or CSS on many pages
Documentation:
Reviews
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Store average score4.8Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average4.7Average computed only from synced review bodies below
Reviews with text472Synced review bodies
Total ratings / reviews657Chrome Web Store public rating/review count
Store average score: 4.8. 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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Great tool - allowed me to customoze and improve some manual work on website that is not mine :)
Simplesmente a melhor extensão que já vi. É muito prático e com usabilidade excelente. Se conseguirem dar a opção de maximizar a coluna de JS ou CSS, fica ainda melhor.
Incredibly well-executed product with a sleek design, well-written code, and an intuitive UI. It has solid documentation and not-commerciall yet. I hope it would be open-sourced on GitHub to build more trust, ensuring it doesn’t follow the unfortunate path that Stylish did. Anyway If you're looking for an extension that allows you to tweak your favorite websites, look no further.
how do i use it
I needed a replacement for CJS, which Chrome was warning me would be going away. I could not be more delighted to have been forced to find a replacement. I love the editor, which is beautiful and has a nice dark, default skin. And I was very happy to see support for CSS **and** SCSS! I haven't tried style injection yet, but I like the idea of having one extension to do custom scripts and styling. The only thing I can think of that it may be lacking is limited module support. For my needs, jQuery is just fine, but I believe CJS may have had more libraries you could load along with your scripts.
So helpful!
Good.
What can I say... it works brilliantly! 10/10! Currently using it to password protect certain sites like web.whatsapp, photos.google.com, so that if a co-worker happens to be using my PC, they can't view my stuff.
I stumbled upon this when I tried to fix my organization's website that is an absolute basic and not really user friendly. With this extension, I no longer needed Redirector, Auto Login, etc! I can do all that just by using this extension! It's a lifesaver! I can even call request from server and fetch generated pdf to be merged with another generated pdf. I will be forever grateful to Legend Dmitry Novikov <3
Very good extension but unfortunately no local modules supported. I have many rules which have same duplicated parts, like regex rules, and i can't place them to common single module.