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How to Convert JSX to CSS - Step by Step Guide

Step 1

Input Your JSX Style Objects

Let's convert your React inline styles to CSS! Whether you're refactoring components, optimizing performance, or moving styles to external stylesheets, you have several convenient options:

•
Paste directly: Copy your JSX style objects from your React components and paste them into the input editor
•
Upload a file: Click "Upload" to select a .js, .jsx, or .txt file from your computer
•
Try the sample: Click "Sample" to load example style objects and see how the converter works

Example: JSX Style Object Input

Here's what React inline style objects look like:

const cardStyle = {
  backgroundColor: '#ffffff',
  borderRadius: '8px',
  boxShadow: '0 2px 4px rgba(0, 0, 0, 0.1)',
  padding: '20px',
  marginBottom: '16px',
  maxWidth: '400px'
};
Step 2

Automatic Conversion & Formatting

The magic happens instantly! As soon as you input JSX style objects, the converter automatically:

•
Converts property names: Transforms camelCase to kebab-case (backgroundColor → background-color)
•
Adds proper units: Converts numeric values to CSS units (20 → 20px)
•
Creates CSS selectors: Generates class names from variable names (cardStyle → .card)

Example: Clean CSS Output

The same styles, now as standard CSS:

.card {
  background-color: #ffffff;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  padding: 20px;
  margin-bottom: 16px;
  max-width: 400px;
}
Step 3

Review the CSS Output

Check your converted CSS! The output panel shows your styles ready for external stylesheets:

•
Proper formatting: CSS rules are beautifully formatted with correct indentation
•
Syntax highlighting: Color-coded CSS makes it easy to read and understand
•
Ready to use: Copy the class names and use them directly in your JSX
Step 4

Export Your CSS

Get your CSS ready for your stylesheets! Multiple export options make it easy to integrate into your project:

•
Copy to clipboard: One-click copying for quick pasting into your CSS file
•
Download as file: Save as a .css file for adding to your project
•
Real-time conversion: Changes update instantly as you edit your JSX styles

Frequently Asked Questions

What is JSX to CSS conversion?

JSX to CSS conversion transforms React inline style objects back into standard CSS rules. This is useful when you want to move styles from inline JavaScript objects to external CSS files for better performance and maintainability.

Why convert JSX to CSS?

Converting inline styles to external CSS can improve performance by reducing JavaScript bundle size, enable better caching, make styles reusable across components, and allow you to use CSS features like media queries and pseudo-classes that aren't supported in inline styles.

How are camelCase properties converted?

The converter automatically transforms camelCase JavaScript properties to kebab-case CSS properties. For example, backgroundColor becomes background-color, and fontSize becomes font-size.

What happens to numeric values?

Numeric values are automatically converted to appropriate CSS units. For most sizing and spacing properties, the converter adds px units where needed. For example, a value of 20 for padding becomes 20px.

How are variable names converted to CSS selectors?

The converter removes the Style suffix and converts camelCase to kebab-case. For example, cardTitleStyle becomes .card-title, and buttonPrimaryStyle becomes .button-primary.

Is this tool free to use?

Yes, totally free with no limitations on usage frequency or features. No registration required, and you can convert unlimited JSX style objects to CSS with full syntax highlighting and instant conversion.

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