HTML to JSX & TSX Converter

What is an HTML to JSX and TSX Converter?

An HTML to JSX and TSX Converter changes standard HTML into React-compatible markup. It updates common attributes, converts inline style text into React style objects, closes void elements, converts HTML comments, and fixes common SVG attribute names.

JSX is used in JavaScript React files, while TSX is used in TypeScript React files. Their markup rules are mostly the same. TSX can also include TypeScript types, interfaces, and typed component props.

The converter handles common syntax changes, but it does not rewrite a complete website or application into React. Event logic, state, data loading, framework templates, and external scripts may still need manual work.

How to convert HTML to JSX

1. Paste HTML or SVG code into the HTML Input editor.
2. Select JSX as the output format.
3. Select Convert HTML to JSX.
4. Review the converted code and any warnings.
5. Copy the result or download it as a .jsx file.

How to convert HTML to TSX

1. Paste HTML or SVG code into the HTML Input editor.
2. Select TSX as the output format.
3. Enable component wrapping when you want a complete React function component.
4. Enter a component name or enable a props interface only when needed.
5. Select Convert HTML to TSX.
6. Review the result, then copy it or download a .tsx file.

HTML, JSX, and TSX differences

• HTML uses class; JSX and TSX use className.
• HTML uses for; JSX and TSX use htmlFor.
• Inline styles become JavaScript objects.
• Void elements such as <img> and <input> must be self-closing.
• Multiple root elements need a wrapper or React fragment.
• JavaScript expressions are placed inside curly braces.

Common HTML attribute changes

React uses camelCase names for many HTML and SVG attributes. The converter updates common attributes automatically.

Inline style conversion

HTML stores inline styles in one text string. React expects a JavaScript object. CSS names such as background-color become camelCase names such as backgroundColor.

<div style="background-color: white; padding: 16px;">
  Content
</div>

<div
  style={{
    backgroundColor: 'white',
    padding: '16px',
  }}
>
  Content
</div>

CSS custom properties remain quoted because names such as --brand-color are not normal JavaScript property names.

style={{
  '--brand-color': '#225F73',
}}

Self-closing HTML elements

HTML allows some elements without a closing slash. JSX and TSX require those elements to be self-closing.

Multiple root elements

A JSX or TSX expression must return one root value. When the input contains several top-level elements, the converter can wrap them in a React fragment.

<h1>Welcome</h1>
<p>Start here.</p>

<>
  <h1>Welcome</h1>
  <p>Start here.</p>
</>

A fragment keeps the output valid without adding another HTML element to the page.

Event handlers and script tags

HTML event attributes use lowercase names and text strings. React uses camelCase event names and JavaScript functions.

<button onclick="submitForm()">Submit</button>

<button onClick={() => submitForm()}>
  Submit
</button>

Simple function calls may be converted. Complex inline JavaScript should be reviewed manually because it may depend on global variables, browser state, or code outside the HTML snippet.

SVG conversion

SVG copied from design tools may contain attributes that React expects in camelCase. The converter can update common SVG names.

Complex SVG files may still require review, especially when they contain embedded styles, scripts, namespaces, filters, or references to external assets.

Complete conversion examples

<div class="profile-card" style="background-color: white; padding: 16px;">
  <label for="name">Name</label>
  <input id="name" type="text" readonly>
  <img src="/avatar.jpg" alt="Profile">
</div>

<div
  className="profile-card"
  style={{
    backgroundColor: 'white',
    padding: '16px',
  }}
>
  <label htmlFor="name">Name</label>
  <input id="name" type="text" readOnly />
  <img src="/avatar.jpg" alt="Profile" />
</div>

The converter changed class to className, changed for to htmlFor, converted the style string into an object, changed readonly to readOnly, and closed the input and img elements.

Unsupported template syntax

HTML copied from a framework or server template may include syntax that cannot be converted automatically.

• Angular directives such as *ngIf and [(ngModel)]
• Vue directives such as v-if, v-for, and @click
• Jinja and Liquid blocks such as {% if %}
• EJS expressions such as <%= value %>
• PHP blocks such as <?php ?>
• Razor expressions such as @Model.Name
• Handlebars blocks such as {{#each}}

The converter may preserve the surrounding HTML and show a warning, but framework logic must be rewritten for React.

Common use cases

• Move static HTML into a React component.
• Convert an HTML prototype into JSX.
• Prepare markup for a TypeScript React component.
• Convert inline SVG into React-compatible code.
• Clean up HTML copied from a design or template.
• Find common JSX attribute problems before adding code to a project.

Common mistakes

• Using class instead of className.
• Using for instead of htmlFor.
• Leaving img, input, or br tags open.
• Keeping inline styles as a text string.
• Returning multiple root elements without a wrapper.
• Copying script tags directly into a component.
• Assuming Angular, Vue, PHP, or Jinja logic will become React automatically.
• Using converted event handlers without checking their dependencies.
• Forgetting to define TypeScript props in TSX mode.
• Using converted code without testing it in the project.

Privacy and processing

The conversion workflow is designed to process the pasted code in the browser. HTML input, JSX output, TSX output, script content, and component names should not be included in analytics events.

Browser extensions, clipboard tools, device settings, and third-party software remain outside the control of the converter. Avoid pasting secrets, credentials, private keys, access tokens, or confidential source code into any browser-based tool unless your environment has been reviewed.

Limitations

The converter changes markup structure and common attributes. It does not rebuild complete application behavior.

• It does not create React state or application data flow.
• It does not convert external CSS into CSS Modules.
• It does not rewrite JavaScript architecture.
• It does not convert Angular or Vue components into React components.
• It does not convert PHP, Jinja, Liquid, Razor, or EJS logic into React.
• It does not create API calls or data-loading logic.
• It does not know which component props your project requires.
• It does not run the output inside your project.

Related tools

• Format HTML — Clean and indent HTML before conversion.
• Format JavaScript — Format JavaScript and React code.
• Format JSON — Validate and format JSON data.
• Convert HTML to Markdown — Change HTML content into Markdown when the route is available.