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XML to Dart Converter

XML (eXtensible Markup Language) is used for SOAP APIs, RSS/Atom feeds, Android layouts, enterprise data exchange. Writing Dart models from XML by hand is repetitive and error-prone. This converter automates that step entirely — paste your XML, get Dart models instantly.

Generate Dart classes with fromJson / toJson factory methods ready for Flutter API integration.

How to use this converter

  1. Paste your XML into the left editor panel
  2. Click Generate
  3. Copy the generated Dart code from the right panel

No account. No upload. No tracking. Runs entirely in your browser.

Example Dart output

class Address {
  final String city;
  final String zip;
 
  Address({required this.city, required this.zip});
 
  factory Address.fromJson(Map<String, dynamic> json) => Address(
    city: json['city'] as String,
    zip: json['zip'] as String,
  );
 
  Map<String, dynamic> toJson() => {'city': city, 'zip': zip};
}

The problem with manual XML-to-Dart mapping

Dart is a object-oriented, optionally typed language — typed data models are central to how it works. Yet copying fields from XML payloads into Dart class definitions introduces subtle errors:

  • Mistyped field names cause silent deserialization failures
  • Missing optional fields trigger runtime panics or null errors
  • Schema drift between API and model goes undetected until production

Dart classes with fromJson factory constructors are the standard pattern for Flutter data models — this converter generates them automatically.

This converter eliminates the manual step entirely.

Dart and XML: what you need to know

Dart is a object-oriented, optionally typed language, primary language for Flutter cross-platform development. It uses class-based with fromJson/toJson methods for structured data — making it a natural fit for XML-driven applications.

What the converter generates

Output produces Dart classes with typed fields, a fromJson(Map<String, dynamic>) factory constructor, and a toJson() method. Nullable fields use Dart's Type? null-safe syntax.

A common gotcha

Dart's null safety (? suffix) must be explicitly applied — forgetting this causes null-check failures in Flutter release builds.

XML input characteristics

XML allows mixed content (text + child elements), namespaces, and CDATA sections — more expressive but more verbose than JSON. XML is the foundation of many enterprise integration standards including XSLT, XSD, and SOAP.

When should I use this converter?

Use this when building Flutter apps that fetch data from REST APIs and need typed, serializable model classes without writing repetitive fromJson boilerplate.

Common use cases

  • Generating model classes for Flutter apps using Dio or http packages
  • Creating serializable models for Flutter's Riverpod or Bloc state management
  • Producing Dart models for Dart server-side apps using Shelf or Dart Frog
  • Creating typed DTOs for Dart backend services
  • Rapid prototyping with real XML payloads
  • Keeping Dart structs in sync when XML schemas evolve
  • Onboarding new team members by auto-generating the data layer
  • Validating XML contract compatibility with Dart type definitions
  • Generating Dart models from Flutter mobile apps API responses

Frequently asked questions

What version of Dart does the output target?

The converter targets modern Dart conventions — Dart classes with fromJson() factory and toJson() method. If you need output for an older version, the generated code can typically be adapted with minor changes.

Is my XML data sent to a server?

No. All conversion runs locally in your browser using client-side JavaScript. Your XML data never leaves your machine.

What XML inputs does this converter accept?

Paste any valid XML — including SOAP APIs, RSS/Atom feeds, Android layouts, enterprise data exchange. The converter infers types and generates a matching Dart model.

What serialization library does the generated Dart code assume?

The generated code is compatible with the standard Dart serialization ecosystem — Dart classes with fromJson() factory and toJson() method. No unusual dependencies required.

Related tools on LangStop

If you work frequently with XML and Dart, bookmark this page to skip the manual model-writing step entirely.