User JavaScript and CSS AlternativesUser Styles Managers and other similar apps like User JavaScript and CSS

User JavaScript and CSS is described as 'Userscript's and userstyle's — simple extension to inject own JavaScript or CSS rules to any page' and is a user styles manager in the development category. There are more than 10 alternatives to User JavaScript and CSS for a variety of platforms, including Mac, Google Chrome, iPhone, iPad and Web-based apps. The best User JavaScript and CSS alternative is Stylus, which is both free and Open Source. Other great apps like User JavaScript and CSS are Stylebot, Noir, Darko and Amino: Live CSS Editor.

filter to find the best alternatives

User JavaScript and CSS alternatives are mainly Dark Mode Enforcers but may also be User Styles Managers or Userscript Managers. Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of User JavaScript and CSS.

User JavaScript and CSS

User Styles Manager
Free • Proprietary

Userscript's and userstyle's — simple extension to inject own JavaScript or CSS rules to any page.

More about User JavaScript and CSS

User JavaScript and CSS alternatives page was last updated Jul 10, 2024

Stylus
Redesign the web with Stylus, a user styles manager.
12 Stylus alternatives
License model
- Free • Open Source
Platforms
- Microsoft Edge
- Google Chrome
- Ungoogled Chromium
- Opera
- Brave
- Chromium
- Firefox
+2
Stylus Features
1. Customizable
2. Configurable
3. No Tracking
4. Themes
5. Opera extension
6. Bug reporting
Show all NaN Stylus features ▾
Stylus VS User JavaScript and CSS
Is Stylus a good alternative to User JavaScript and CSS?
- Stylus is the most popular Open Source & free alternative to User JavaScript and CSS.
- Stylus is Free and Open SourceUser JavaScript and CSS is Free and Proprietary
- Stylus is CustomizableUser JavaScript and CSS is not according to our users

Stylebot
Change the appearance of websites instantly by applying a easy to use interface for changing the CSS. Preview and install styles created by users for your favorite websites.
11 Stylebot alternatives
License model
- Free • Open Source
Application type
- User Styles Manager
Platforms
- Online
- Google Chrome
Stylebot Features
Configurable
Live css editing
Multiple Font Colors
Show all NaN Stylebot features ▾
Stylebot VS User JavaScript and CSS
Is Stylebot a good alternative to User JavaScript and CSS?
- Stylebot is the most popular Web-based alternative to User JavaScript and CSS.
- Stylebot is Free and Open SourceUser JavaScript and CSS is Free and Proprietary

Noir
Noir is a Safari extension for iOS that automatically adds a dark mode to every website you visit.
22 Noir alternatives
+5
License model
- Paid • Proprietary
Application type
- Dark Mode Enforcer
Platforms
- Mac
- iPhone
- iPad
Noir Features
Dark Mode
Lightweight
Safari extension
Show all NaN Noir features ▾
Noir VS User JavaScript and CSS
Is Noir a good alternative to User JavaScript and CSS?
- Noir is the most popular Mac, iPhone & iPad alternative to User JavaScript and CSS.
- Noir is the most popular commercial alternative to User JavaScript and CSS.
- Noir is Paid and ProprietaryUser JavaScript and CSS is Free and Proprietary
- Noir is LightweightUser JavaScript and CSS is not according to our users

Darko
Darko will make your Thunderbird messages dark.
22 Darko alternatives
License model
- Free • Proprietary
Application type
- Dark Mode Enforcer
Platforms
- Thunderbird
Darko Features
Dark Mode
Show all NaN Darko features ▾
+9
Darko VS User JavaScript and CSS
Is Darko a good alternative to User JavaScript and CSS?

Amino: Live CSS Editor
Make visual changes to any website with CSS and see changes in real time. Sync, edit, and export your custom style sheets.
9 Amino: Live CSS Editor alternatives
License model
- Freemium • Proprietary
Platforms
- Online
- Google Chrome
Amino: Live CSS Editor Features
Support for Javascript
Live css editing
Show all NaN Amino: Live CSS Editor features ▾
Amino: Live CSS Editor VS User JavaScript and CSS
Is this a good alternative to User JavaScript and CSS?

xStyle
A Chinese Developed Theme Manager. based on the source code of Stylish-for-Chrome 1.7.0.
10 xStyle alternatives
License model
- Free • Open Source
Application type
- User Styles Manager
Platforms
- Online
- Chrome OS
- Google Chrome
- Mozilla Firefox
+5
xStyle VS User JavaScript and CSS
Is xStyle a good alternative to User JavaScript and CSS?

superUserContent
Dynamically load stylesheets in Firefox from plaintext files in your profile.

superUserContent is a simple Firefox plugin that creates a new directory in your profile's chrome directory called userContent.css.d. You can use this directory as a runtime path for css styleshee.
8 superUserContent alternatives
License model
- Free • Open Source
Application type
- User Styles Manager
Platforms
- Mac
- Windows
- Linux
- Mozilla Firefox
superUserContent Features
Themes
Configurable
Show all NaN superUserContent features ▾
superUserContent VS User JavaScript and CSS
Is superUserContent a good alternative to User JavaScript and CSS?
- superUserContent is the most popular Windows & Linux alternative to User JavaScript and CSS.
- superUserContent is Free and Open SourceUser JavaScript and CSS is Free and Proprietary

Makeover - Custom CSS
Makeover lets you change the appearance and behavior of web pages with CSS and JavaScript. To use it, you go to a web page you want to customize, tap the Makeover icon, and paste the code into the text field.
12 Makeover - Custom CSS alternatives
License model
- Free • Open Source
Application type
- Userscript Manager
Platforms
- iPhone
- iPad
Makeover - Custom CSS Features
Safari extension
Show all NaN Makeover - Custom CSS features ▾
+1
Makeover - Custom CSS VS User JavaScript and CSS
Is this a good alternative to User JavaScript and CSS?

Man in the Middle
Modify requests, inject JavaScript and CSS into pages.
19 Man in the Middle alternatives
License model
- Free • Open Source
Application type
- Userscript Manager
Platforms
- Mac
- Windows
- Linux
- Online
- UC Browser
- CentBrowser
- Google Chrome
- Yandex.Browser
- Opera
- Chromium
- Firefox
+3
Man in the Middle VS User JavaScript and CSS
Is Man in the Middle a good alternative to User JavaScript and CSS?

Dark theme
This app helps to activate night theme on devices that don't provide this option in the system settings.
22 Dark theme alternatives
+3
License model
- Free • Open Source
Application type
- Dark Mode Enforcer
Platforms
- Android
- Android Tablet
Dark theme Features
Dark Mode
Show all NaN Dark theme features ▾
Dark theme VS User JavaScript and CSS
Is Dark theme a good alternative to User JavaScript and CSS?
- Dark theme is the most popular Android & Android Tablet alternative to User JavaScript and CSS.
- Dark theme is Free and Open SourceUser JavaScript and CSS is Free and Proprietary

Dark Mode Enabler
Enables dark mode and filters on all websites that do not support it natively.
22 Dark Mode Enabler alternatives
License model
- Free • Open Source
Application type
- Dark Mode Enforcer
Platforms
- Google Chrome
+1
Dark Mode Enabler Features
1. No registration required
2. Dark Mode
3. Ad-free
4. Works Offline
5. Privacy focused
6. No Tracking
7. Lightweight
8. Invert colours
Show all NaN Dark Mode Enabler features ▾
Dark Mode Enabler VS User JavaScript and CSS
Is Dark Mode Enabler a good alternative to User JavaScript and CSS?

Neo Noir
This Safari extension offers dark mode browsing in Safari. Neo Noir night mode adds a beautiful theme to every page you visit.
22 Neo Noir alternatives
License model
- Free • Proprietary
Application type
- Dark Mode Enforcer
Platforms
- Mac
- iPhone
- iPad
Neo Noir Features
Dark Mode
Safari extension
Show all NaN Neo Noir features ▾
+2
Neo Noir VS User JavaScript and CSS
Is Neo Noir a good alternative to User JavaScript and CSS?