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
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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
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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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раньше работало норм, но после обновления, стала появляться такая фраза: Событие `DOMContentLoaded` не сработает, включите режим "запускать на старте". Как включить? Непонятно. P.s. Мерси за ответ, теперь работает!
faced the same issue (css not working) after the update, hope it can be fixed as soon as possible I had used this extension since 2019, it's my favourite extension to adjust / improve ui / ux for poor design of some website ----------- Edited: Thanks for the fast response, I had sent you the feedback via email
Спасибо за расширение! 1) Подскажите, пожалуйста, как пользоваться модулями, используя так называемое "Общее правило"? В целом, очень было бы хорошо использование модулей расписать где-нибудь подробнее, как это сделано с URL паттернами. 2) Очень не удобно реализована подсказка об URL паттернах, так как она появляется при наведении на всё поле URL, а не только на иконку "i". Из-за того, что в этой подсказке есть кнопки, то подсказка не исчезает при перемещении курсора со строки URL паттерна, а так как она исчезает медленно, то постоянно при перемещении курсора мыши в области написания кода и при условии что подсказка ещё не исчезла полностью, она снова появляется, хотя курсор мыши уже не находится на строке URL паттерна. Очень прошу этот момент учесть.
It pains me to leave a 1 star review as I love this extension. It worked perfectly until today's update when it started generating jQuery errors on popup modals. For those who love this extension and need an immediate solution, what I did was to download the 2.1.1 version from the CRX4Chrome website and sideload it manually as a local extension to continue enjoying the previous stable version.
Worked fine for months until today's update. Now CSS changes flash as the page loads (you see the old stuff before the changes take effect). This never happened before.
Completely useful
So damn fun.
I love this extension, I really wish they would add it to Firefox as well. GreaseMonkey is not as nice as this.
good, but can it run script before page load?
Love this! As a wide variety programmer, I use it everywhere to give myself a better user experience for so many sites!