HTML → JSX — Free Online Tool

An HTML to JSX converter transforms standard HTML markup into JSX syntax compatible with React and other JavaScript frameworks. React developers use this tool to convert existing HTML templates, mockups, and static content into JSX components for modern web applications. The converter handles attribute name transformations, self-closing tags, className conversions, and JavaScript expression syntax automatically. This conversion accelerates React development by eliminating manual HTML-to-JSX translation errors.

Features

• Instant JSX Conversion: Convert HTML to JSX with automatic attribute transformation and syntax correction in real-time.
• Privacy-First Processing: All conversions happen locally in your browser with no code sent to external servers for security.
• Pipeline-Ready Output: Generate JSX compatible with React, Next.js, and modern JavaScript build tools and workflows.
• Offline-Capable Tool: Works completely offline as a PWA, perfect for development environments and secure coding sessions.

Frequently Asked Questions

What is an HTML to JSX converter?

An HTML to JSX converter transforms standard HTML markup into JSX syntax used by React and similar frameworks. It converts HTML attributes like "class" to "className", handles self-closing tags, and ensures proper JavaScript expression syntax for React components.

Is this HTML to JSX converter free to use?

Yes, this converter is completely free with unlimited conversions, no file size restrictions, and no premium features. Convert as much HTML to JSX as needed without any costs or subscriptions.

Is my HTML code secure when converting to JSX?

Your code is completely secure as all processing happens locally in your browser. No HTML content is uploaded to servers or stored externally, protecting your proprietary code and intellectual property.

How do I convert HTML to JSX format?

Simply paste your HTML code, optionally configure formatting preferences, click convert, and copy the generated JSX. The conversion handles all necessary syntax transformations automatically for React compatibility.

What HTML features are supported in JSX conversion?

The converter supports standard HTML elements, attributes, nested structures, and modern HTML5 features. It handles class-to-className conversion, self-closing tags, data attributes, and aria properties correctly.

Are there limitations on HTML to JSX conversion?

Very large HTML files may experience slower processing in the browser. Complex server-side templating syntax requires manual handling, and some HTML comments may need review for JSX compatibility.

What alternatives exist for HTML to JSX conversion?

Alternatives include VS Code extensions, online tools like HTMLtoJSX.com, and build-time transformers. Our tool provides immediate results with offline capability and no editor dependencies.

Does this converter work offline without internet?

Yes, this tool operates completely offline as a Progressive Web App (PWA). Once loaded, you can convert HTML to JSX without internet connection, ideal for secure development environments.

What happened to smalldev.tools?

smalldev.tools is no longer available. Prism by SWEDevTools offers the same developer tools and more, with offline support, pipeline chaining, and completely free usage — no signup required.

Is Prism a good alternative to freeformatter.com for HTML?

Yes. Prism processes HTML entirely in your browser — no data uploads, no ads, and full offline support. You can also chain HTML tools with other Prism tools in pipelines.