HTML to JSX Converter
Convert raw HTML to React JSX: rewrites class to className, camelCases attributes and self-closes void elements.
Convert raw HTML to React JSX: rewrites class to className, camelCases attributes and self-closes void elements.
This free HTML to JSX Converter from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the HTML to JSX Converter
- Paste your input - JSON, regex pattern, JWT, URL etc.
- Pick any flags or options the tool supports.
- Click the action button (Format, Test, Decode).
- Copy the result or download it as a file.
What you can do with the HTML to JSX Converter
- Format and validate API responses while debugging.
- Test regex patterns against real input before deploying.
- Decode JWTs to inspect claims and expiry.
- Generate UUIDs for migrations, tests and seeders.
Why use KX Toolkit's HTML to JSX Converter
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
Bookmark the most-used tools - your browser bookmark bar is faster than retyping the URL every time.
Related Developer Tools
If you find this tool useful, explore the full Developer Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
What does the converter actually change?
It rewrites class to className, for to htmlFor, camelCases attributes like tabindex to tabIndex and onclick to onClick, self-closes void elements like img and br, converts inline styles from string to object form, and converts HTML comments to JSX comment expressions. The structural markup stays the same so the visual output matches.
Why does inline style need to be an object in JSX?
JSX treats style as a JavaScript object so React can manage it as a normal prop, applying values via element.style at runtime. The converter parses background-color: red into {{ backgroundColor: 'red' }}. Numeric values for properties like width get an automatic px in React 18+, which can be surprising - pass a string if you want a different unit.
How are SVG attributes handled?
Most SVG attributes are camelCased the same way: stroke-width becomes strokeWidth, fill-rule becomes fillRule. xmlns and viewBox keep their odd capitalization. Hyphenated data and aria attributes are preserved as-is, since React allows them in their original kebab-case form. The result is a JSX SVG that React renders identically to the original markup.
Will the converted JSX work in Preact or Solid?
Preact accepts the React-style camelCased attributes but also tolerates regular HTML names like class, so converted JSX works fine. Solid uses class as in HTML and has its own conventions for events with on prefix; converting from HTML to Solid requires a Solid-specific transformer. Always check the target framework's JSX flavor before pasting.
Why does my converted JSX produce a parse error?
Common causes are reserved JSX characters left unescaped - single curly braces, less-than, or greater-than inside text need to be wrapped or replaced with their HTML entity. Multiple sibling elements at the top level need a wrapping fragment or parent. The converter handles most of these but custom syntax in the source can confuse it.
Can I convert templates from Vue, Twig, or Handlebars?
Not directly. Those template engines use moustache or directive syntax that the HTML-to-JSX converter does not understand. It will pass interpolations through as plain text, leaving you to rewrite control flow manually. Convert to JSX after stripping the templating, or use a framework-specific converter that handles the source's control structures.
No reviews yet
Be the first to share your experience with the HTML to JSX Converter.