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%
Cooling signalUnknownMedium-risk permissions
Page Manipulator
Inject HTML, CSS or JavaScript into any web-page. The changes you make are applied every time you visit the specified website(s).
Users8KCurrent public install base
Rating3.6Store average score
Reviews40Public review volume
Manifest versionV3Extension platform version
7-day growth-1KNet users gained this week
7-day growth rate-11.1%Relative weekly velocity
Preview
5 assetsPage Manipulator Media preview
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User Growth Over Time
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7-day rating change
Start
3.63
Latest
3.63
7-day rating change
0.00
2026年7月13日2026年7月19日
Growth overview
Daily, weekly, and monthly growth
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1-day growthDeclining
-1K-11.1%7-day growthDeclining
-1K-11.1%30-day growthDeclining
-1K-11.1%Technical snapshot
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Version0.5.5
ManifestV3
Size2.17MiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
Review the store description, core capabilities, and common use cases.
𝐂𝐮𝐬𝐭𝐨𝐦𝐢𝐳𝐞 𝐚𝐥𝐦𝐨𝐬𝐭 𝐚𝐧𝐲 𝐰𝐞𝐛-𝐩𝐚𝐠𝐞 𝐛𝐲 𝐢𝐧𝐣𝐞𝐜𝐭𝐢𝐧𝐠 𝐜𝐮𝐬𝐭𝐨𝐦 𝐇𝐓𝐌𝐋, 𝐂𝐒𝐒, 𝐨𝐫 𝐉𝐚𝐯𝐚𝐒𝐜𝐫𝐢𝐩𝐭.
𝐇𝐚𝐯𝐞 𝐭𝐡𝐞 𝐜𝐡𝐚𝐧𝐠𝐞𝐬 𝐲𝐨𝐮 𝐦𝐚𝐤𝐞 𝐛𝐞 𝐬𝐚𝐯𝐞𝐝 𝐚𝐧𝐝 𝐚𝐩𝐩𝐥𝐢𝐞𝐝 𝐞𝐯𝐞𝐫𝐲 𝐭𝐢𝐦𝐞 𝐲𝐨𝐮 𝐯𝐢𝐬𝐢𝐭 𝐭𝐡𝐞 𝐬𝐩𝐞𝐜𝐢𝐟𝐢𝐞𝐝 𝐰𝐞𝐛𝐬𝐢𝐭𝐞𝐬.
𝐁𝐞𝐭𝐭𝐞𝐫 𝐭𝐡𝐚𝐧 '𝐢𝐧𝐬𝐩𝐞𝐜𝐭 𝐞𝐥𝐞𝐦𝐞𝐧𝐭' 𝐛𝐞𝐜𝐚𝐮𝐬𝐞 𝐜𝐡𝐚𝐧𝐠𝐞𝐬 𝐰𝐢𝐥𝐥 𝐬𝐭𝐚𝐲 𝐚𝐟𝐭𝐞𝐫 𝐫𝐞𝐥𝐨𝐚𝐝𝐢𝐧𝐠.
Functionalities:
- Automatically inject custom HTML, CSS, and/or JavaScript into the pages you specify.
- Run custom CSS before the page is fully loaded so you won't see the original page first.
Reviews
Recent review snapshot
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Store average score3.6Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.5Average computed only from synced review bodies below
Reviews with text34Synced review bodies
Total ratings / reviews40Chrome Web Store public rating/review count
Store average score: 3.6. 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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Reviews
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7D Growth
0|0%
clear interface, and worked for me
Either not working or inefficacious UI. There is no "Active" checkbox to check. It never came on no matter which webpage was loaded. The active checkbox is consistently absenst across a large number of sites (including google.com used in the example) that I loaded for testing. The video on the github page leans too much on the "marketing" rather than explaining with a short tutorial. Probably I am doing something wrong, but the UI and the help provided aren't all that much useful to get users going with this extension.
Works perfectly
honestly W extension if it says it cant edit in sites enable developer mode
When I open it, the scrollbars dont even work and the text is halfway off the screen unreadable, no way to scroll left or right, buttons simply broken. Totally useless broken extension.
I've been using this extension for years. It has worked great most of the time. When it hasn't worked, it's simply because the site blocked the script (not an issue with the extension). Most of the bad reviews are due to user being too picky with the UI, user's skill issues or people not understanding that some sites block these kinds of scripts.
Works for me. Good one.
Works beautifully. Much easier for a novice than TamperMonkey. One issue that does come up is that I can see no way to determine which code runs first. I have resorted to placing all my functions in one file, but that is less convenient. Also, worth mentioning there are sometimes syncing issues, meaning that code I write on one device doesn't sync with the extension on another device even though Chrome syncing is working properly.
If you're writing code and then you click like delete or if you press enable before you write anything, then clicking 'ok' on the javascript popup before closing the extension will make it so that you can't open the extension after that.
Giving it a 4 star for now since ive only had it for 30 minutes, but I already love it. Every time I opened a website I had to edit some inspect element things to adjust my own preferences, but because of this extension I no longer have to do that. The UI is slightly confusing at first but with a few tries you will understand the buttons and then you (hopefully) no longer have to touch them.