HTML to JSX Converter

JSX looks like HTML, but it isn't. React reuses JavaScript's variable-naming rules, which means 'class' becomes 'className', 'for' becomes 'htmlFor', and event handlers like 'onclick' become 'onClick'. Inline styles that were strings become JavaScript objects with camelCase property names. Void elements must self-close. This tool handles all of that in one paste-and-copy operation.

What Gets Converted

Attribute renames — class → className, for → htmlFor, tabindex → tabIndex, readonly → readOnly, maxlength → maxLength, and 30+ other renames. Event handlers — onclick → onClick, onmouseover → onMouseOver, onchange → onChange (all events camelCased). Void element self-closing — <img>, <input>, <br>, <hr> get proper <img /> syntax. Style strings to objects — 'color: red; font-size: 16px' becomes {{color: 'red', fontSize: '16px'}}. HTML comments — converted to JSX-compatible {/* */} syntax. Boolean attributes — checked, disabled, required become explicit true assignments.

Common Use Cases

Porting a static landing page into a React component without manually fixing class vs className, for vs htmlFor, self-closing void elements, and inline-style strings on every element. Bringing a Figma-export or Webflow-export HTML snippet into a Next.js or Remix app. Cleaning up AI-generated HTML before pasting it into a JSX file so the build doesn't reject it for missing closes or stray boolean attributes.

Quickly checking what a chunk of marked-up content looks like in JSX form before committing to refactoring it into proper components — the conversion makes the syntactic friction visible at a glance. Every inline style attribute string becomes a JSX object literal, every tabindex becomes tabIndex, and every boolean attribute gets the right JSX shape, which helps scope the eventual cleanup.

How We Compare

VS Code extensions like "html to jsx" handle the conversion in your editor but require an install and ship varying levels of attribute coverage — some skip the inline-style transform entirely, which is the part that actually takes the longest by hand. Online converters from transform.tools and similar sites work but route your markup through their servers, which matters if the snippet contains internal copy, customer data, or unreleased designs.

This tool runs the conversion entirely client-side using a regex pipeline plus a parser pass for the trickier inline-style cases. Note that this is a syntax conversion, not a componentization: variables, props, event handlers, and conditional rendering are still your job once the JSX is valid. For pure beautification of either input or output, see code beautifier.

One JSX-specific point to remember: void elements (
, , ) must self-close as
in JSX. The converter handles that, but if you copy raw HTML into a JSX file later, the build error is usually about exactly this.

Frequently Asked Questions

Built by Derek Giordano · Part of Ultimate Design Tools

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