XML to JavaScript PropTypes
Paste XML and instantly get idiomatic React PropTypes shape definitions inferred from elements, attributes, and repeated nodes.
Example
Input XML:
<user id="1" active="true">
<name>Ada</name>
</user>
Generated PropTypes:
import PropTypes from 'prop-types';
export const Root = PropTypes.shape({
'@id': PropTypes.number.isRequired,
'@active': PropTypes.bool.isRequired,
name: PropTypes.string.isRequired,
});How it works
DOMParser reads the XML into a value (attributes become fields, repeated child tags become arrays), then types are inferred recursively and emitted as PropTypes.shape definitions with a Root type.
Good to know
XML to JavaScript PropTypes turns an XML document into a ready-to-use React PropTypes.shape definition. It's aimed at front-end developers who consume XML feeds, SOAP responses, RSS/Atom data, or legacy config files in a React app and want runtime prop validation without hand-writing every field. You paste XML on the left, click Convert, and get an exported Root type on the right that mirrors your document's structure.
Reach for it whenever you're wiring an XML-shaped payload into a component and want a quick scaffold instead of typing nested shapes by hand. It's also handy as a structure check: because the output reflects exactly what the parser saw, an unexpected type or a missing .isRequired often reveals something about your sample data you didn't notice.
To read the result, remember a few of the tool's conventions: scalar text is inferred as number, bool, or string by inspecting the value; attributes appear as quoted keys prefixed with @; repeated sibling tags collapse into a PropTypes.arrayOf(...); and a mixed element that has both attributes and text content stores its text under a #text key. A field is marked .isRequired only when it appears in every merged instance.
One practical caveat: type inference is driven entirely by your sample, so paste XML that covers all the variations you expect. If a field is sometimes a number and sometimes blank, or only present in some array entries, the tool will widen the type or drop .isRequired accordingly. Treat the generated code as a strong starting point and review optional-versus-required decisions before shipping.
Frequently asked questions
How are XML attributes represented?
Attributes are emitted as shape keys prefixed with @ (for example @id), since attribute names and child element names can otherwise collide. They are quoted because @ is not a valid JS identifier start.
How does it handle repeated elements like list items?
When a parent has several children with the same tag name, they become a PropTypes.arrayOf(...). The tool merges all instances, so a field missing in some entries is treated as optional (no .isRequired).
Is my data uploaded anywhere?
No — this tool runs entirely in your browser. Your input never leaves your device and it works offline once loaded.
Is it free?
Yes, completely free with no sign-up and no limits.
People also ask
What are React PropTypes used for?
PropTypes is a library that declares the expected types of a React component's props and logs a console warning in development when a prop doesn't match. It provides lightweight runtime validation and serves as inline documentation, though it is not a compile-time type system like TypeScript.
How does the tool decide whether a value is a number, boolean, or string?
It trims each text value and checks it: 'true' or 'false' becomes a bool, a numeric string up to 16 characters becomes a number, and everything else stays a string. Empty values are treated as empty strings.
Why does my output use PropTypes.oneOfType for some fields?
That happens when repeated elements with the same tag contain mixed value types across instances, for example one entry holding a number and another holding text. The tool combines the observed types into a oneOfType union rather than guessing a single type.
Does this tool generate TypeScript types or interfaces?
No. It only emits runtime React PropTypes definitions using PropTypes.shape and related validators. If you need TypeScript interfaces, you would convert the XML through a different tool or transform the structure separately.
Can it handle XML namespaces and attributes like xmlns?
It ignores namespace declarations, skipping any attribute named xmlns or starting with xmlns:, so those do not appear in the output. Other attributes are kept and rendered as @-prefixed quoted keys.
What happens if my XML is invalid?
The tool uses the browser's DOMParser, which reports a parser error for malformed XML. When that occurs the output is cleared and a short error message describing the problem is shown instead of generated code.
Is PropTypes still supported in current React versions?
The prop-types package still works and can be installed separately, but React removed the built-in PropTypes support from the main package in React 19. Many teams now use TypeScript for type checking, though PropTypes remains usable in projects that depend on it.
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