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HTML to JSX
100% LocalConvert HTML markup to valid JSX for React components.
HTML to JSX
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This tool runs entirely in your browser. Your input is never uploaded, logged, or sent to AllDevToolsHub or anyone else, and it keeps working offline once the page has loaded.
Paste HTML markup. Attributes convert to JSX camelCase, class becomes className, styles parse to objects.
Overview
What is HTML to JSX?
Transform HTML into JSX-compatible code. Converts class to className, for to htmlFor, inline styles, self-closing tags, and 30+ HTML attribute mappings.
FAQ
Frequently Asked Questions
Reference
Technical Deep Dive
HTML to JSX
Transform HTML into JSX-compatible code. Converts class→className, for→htmlFor, inline styles to objects, self-closing tags, boolean attributes, event handlers, and 30+ HTML attribute mappings.
Two-Way Conversion
Convert in either direction with consistent semantics on the round-trip.
Type-Faithful
Preserves nulls, numbers, booleans, and structure, no string-soup translation.
Production-Sized
Built to handle real-world payloads, not just textbook examples.
01 Attribute Mapping Matrix
| HTML Attribute | JSX Property | Category |
|---|---|---|
class | className | Reserved Keyword |
for | htmlFor | Reserved Keyword |
tabindex | tabIndex | CamelCase Mapping |
onclick | onClick | Event Handler |
readonly | readOnly | Form Property |
srcset | srcSet | Media Property |
02 Transformation Pipeline
1
AST Generation
The input HTML is parsed into an Abstract Syntax Tree to identify elements, attributes, and text nodes.
2
Property Reification
Attributes are mapped to JSX counterparts, styles are converted to objects, and void tags are marked for self-closing.
3
JSX Serialization
The transformed AST is serialized back into a clean string ready for insertion into any React or Next.js component.
03 HTML-to-JSX Transformation Rules
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Attribute Name Mapping HTML attributes follow different naming conventions than JSX. This tool handles the complete mapping: class → className, for → htmlFor, tabindex → tabIndex, onclick → onClick, and all data-* and aria-* attributes remain unchanged. The conversion covers 40+ attribute differences between HTML and React's JSX specification.
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Style Object Conversion Inline style strings like style="color: red; font-size: 14px" must be converted to JSX style objects: style={{ color: "red", fontSize: "14px" }}. CSS property names are camelCased, values become strings (or numbers for pixel values), and vendor prefixes like -webkit-transform become WebkitTransform.
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Self-Closing Tag Enforcement HTML allows unclosed tags like
,, , and
. JSX requires all tags to be explicitly closed:
,, ,
. This tool automatically adds self-closing syntax to all void elements per the HTML5 specification.
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RJRahul JalavadiyaFounder & Lead Engineer
Last reviewed 2026-07-29