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 Mozilla Firefox 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 Noir, Stylebot, xStyle and Amino: Live CSS Editor.

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User JavaScript and CSS alternatives page was last updated

Alternatives list

  1. Stylus icon
     101 likes

    Redesign the web with Stylus, a user styles manager.

    Cost / License

    Application type

    Platforms

    • Microsoft Edge
    • Google Chrome
    • Opera
    • Brave
    • Chromium
    • Mozilla Firefox
     
  2. Noir icon
     5 likes

    Noir is a Safari extension for iOS that automatically adds a dark mode to every website you visit.

    21 Noir alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
     
  3. Stylebot icon
     15 likes

    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.

    12 Stylebot alternatives

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Online
    • Google Chrome
    • Microsoft Edge
    • Mozilla Firefox
     
  4. xStyle icon
     3 likes

    A Chinese Developed Theme Manager. based on the source code of Stylish-for-Chrome 1.7.0.

    Cost / License

    Application type

    Platforms

    • Online
    • Chrome OS
    • Google Chrome
    • Mozilla Firefox
     
  5. Make visual changes to any website with CSS and see changes in real time. Sync, edit, and export your custom style sheets.

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
    • Google Chrome
     
  6. 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.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Mozilla Firefox
     
  7. Modify requests, inject JavaScript and CSS into pages.

    Cost / License

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • UC Browser
    • CentBrowser
    • Google Chrome
    • Yandex.Browser
    • Opera
    • Chromium
    • Firefox
     
  8. 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.

    Cost / License

    • Free
    • Open Source

    Application type

    Platforms

    • iPhone
    • iPad
     
  9. Enables dark mode and filters on all websites that do not support it natively.

    Cost / License

    • Free
    • Open Source (MIT)

    Application type

    Platforms

    • Google Chrome
     
  10. Dark theme icon
     1 like

    This app helps to activate night theme on devices that don't provide this option in the system settings.

    Cost / License

    Application type

    Platforms

    • Android
    • Android Tablet
     
  11. This Safari extension offers dark mode browsing in Safari. Dark Night adds a beautiful theme to every page you visit.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • iPhone
    • iPad
    • Safari
     
12 of 15 User JavaScript and CSS alternatives