User JavaScript and CSS
User JavaScript and CSS on any website.
User JavaScript and CSS Alternatives & Competitors
The best User JavaScript and CSS alternatives based on verified products, community votes, reviews and other factors.
Some of the top features or benefits of User JavaScript and CSS are: Customization, Control, Accessibility, and Learning. You can visit the info page to learn more.
We have listed more than 10 alternatives to User JavaScript and CSS. You can find them below. The top competitors are: Dark Reader, Stylebot, and Stylus. Apart from the top ones, people also compare User JavaScript and CSS with Tampermonkey, Violentmonkey, and ObfuscatorJS Seven.
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/dark-reader-alternatives
Reduce eye strain in your browser with this extension that provides a dark theme for browsing.
Key Dark Reader features:
Eye Strain Reduction Customizable Settings Improved Battery Life Open Source
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/stylebot-alternatives
Change the appearance of websites instantly. Preview and install styles created by other users on stylebot.me.
Key Stylebot features:
User-Friendly Interface Customization Real-Time Changes Community-Driven
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Visit websiteFree MVP cost calculator: describe your app in 5 clicks and get a realistic 2026 estimate for a freelancer build, a traditional agency and a fixed-price 14-day build by senior professionals, where the client owns the code.
Key SquadPrime features:
Estimate in 5 clicks Three build routes compared No signup 2026 market rates
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/stylus-alternatives
EXPRESSIVE, DYNAMIC, ROBUST CSS.
Key Stylus features:
Simplified Syntax Extensive Feature Set Preprocessor Enhancements JavaScript Interoperability
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/codepen-alternatives
A front end web development playground.
Key CodePen features:
Real-time Collaboration Immediate Visual Feedback Integrated Development Environment (IDE) Community-Driven
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/javascript-obfuscator-alternatives
JavaScript Obfuscator is a free online tool that obfuscates your source code, preventing it from being stolen and used without permission.
Key JavaScript Obfuscator features:
Increased Code Security Protection from Reverse Engineering Deterrence against Hackers Preservation of Functionality
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/amino-editor-alternatives
Amino is a Chrome browser extension for customizing web page presentation with user CSS.
Key Amino Editor features:
User-Friendly Interface Real-Time Collaboration Cross-Platform Compatibility Rich Text Editing Features
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/jsfiddle-alternatives
Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
Key JSFiddle features:
Easy Sharing and Collaboration Real-Time Editing Supports Multiple Frameworks Embed Feature
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/onecompiler-alternatives
Development.
Key OneCompiler features:
Wide Language Support No Installation Required Free to Use Code Sharing and Embedding
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/xstyle-alternatives
A user styles manager for the Web.
Key xStyle features:
Customization Open Source Lightweight User Style Management
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/codesandbox-alternatives
Online playground for React.
Key CodeSandbox features:
Ease of Use Instant Collaboration Pre-configured Environments Integrated Development
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/java-obfuscator-and-android-obfuscator-alternatives
Static Code Analysis.
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/man-in-the-middle-alternatives
Modify requests, inject JavaScript and CSS into pages.
Key Man in the Middle features:
Educational Value Network Testing
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/replit-alternatives
Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
Key replit features:
Ease of Use Collaborative Coding Supports Multiple Languages Cloud-Based
