Pasting HTML straight from a design handoff or a static site into a React component almost always breaks — class isn’t a valid JSX prop, <img> needs a self-closing slash, and inline style strings need to become objects. Fixing all of that by hand across a large page is tedious.
What Is HTML to JSX?
HTML to JSX is one of the tools in WebdevToolbox’s JavaScript Tools category. Paste any HTML markup and get JSX-ready output: attributes renamed to their React equivalents, void elements self-closed, and inline styles converted into JSX style objects.
How to Use It
- Open the tool at /tools/html-to-jsx.
- Paste your HTML markup into the left panel.
- Copy the converted JSX from the right panel — it updates live as you type.
- Review the result, especially around comments (which are stripped, since JSX comments use different syntax) and any deeply nested or malformed markup.
Key Features
- Full attribute map —
class→className,for→htmlFor,tabindex→tabIndex, common event handlers, and more. - Void elements self-closed automatically —
<img>,<input>,<br>, and others get a trailing/>. - Inline styles converted to objects —
style="font-size: 14px"becomesstyle={{ fontSize: '14px' }}. - 100% private — conversion runs entirely in your browser.
When to Use HTML to JSX
- Porting a static HTML page or design export into a React component.
- Copying markup snippets from documentation or Stack Overflow into JSX.
- Learning JSX attribute naming by seeing it mapped from familiar HTML.
Try It Now
Open HTML to JSX directly from anywhere on the site using ⌘K and typing the tool name.
Part of the JavaScript Tools collection on WebdevToolbox — free, browser-based developer tools with no login required.