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XML to Swift Converter

XML is a attribute-rich, namespace-aware hierarchical document format — widely used for SOAP APIs, RSS/Atom feeds, Android layouts, enterprise data exchange. Converting it to strongly-typed Swift structures eliminates runtime surprises and speeds up development. This tool does it in one click, entirely in your browser.

Generate Swift structs conforming to Codable with CodingKeys for clean JSON mapping in iOS apps.

How to use this converter

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

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

Example Swift output

struct Address: Codable {
    let city: String
    let zip: String
}
 
struct User: Codable {
    let id: Int
    let name: String
    let email: String?
    let address: Address
 
    enum CodingKeys: String, CodingKey {
        case id, name, email, address
    }
}

The problem with manual XML-to-Swift mapping

Swift is a type-safe, protocol-oriented language — typed data models are central to how it works. Yet copying fields from XML payloads into Swift struct / Codable 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

Swift's Codable protocol (combining Encodable and Decodable) enables automatic JSON/XML parsing with zero boilerplate.

This converter eliminates the manual step entirely.

Swift and XML: what you need to know

Swift is a type-safe, protocol-oriented language, required for iOS, macOS, and Apple platform development. It uses struct and Codable protocol based for structured data — making it a natural fit for XML-driven applications.

What the converter generates

Output produces struct types conforming to Codable (Encodable & Decodable) with a CodingKeys enum for custom key mapping. Optional properties use Swift's Optional<T> (Type?) syntax.

A common gotcha

Swift's Codable fails silently on missing required fields — mark optional fields as Optional to avoid decoder crashes.

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 iOS or macOS apps that consume REST APIs, saving the boilerplate of writing Codable structs and CodingKeys by hand.

Common use cases

  • Generating Codable structs for URLSession or Alamofire API calls in iOS
  • Creating SwiftUI models from REST API response payloads
  • Producing Decodable types for Swift Package Manager config parsing
  • Validating XML contract compatibility with Swift type definitions
  • Generating Swift models from iOS apps API responses
  • Creating typed DTOs for macOS utilities
  • Rapid prototyping with real XML payloads
  • Keeping Swift structs in sync when XML schemas evolve
  • Onboarding new team members by auto-generating the data layer

Frequently asked questions

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 Swift model.

What serialization library does the generated Swift code assume?

The generated code is compatible with the standard Swift serialization ecosystem — Swift structs conforming to Codable with CodingKeys where needed. No unusual dependencies required.

What version of Swift does the output target?

The converter targets modern Swift conventions — Swift structs conforming to Codable with CodingKeys where needed. If you need output for an older version, the generated code can typically be adapted with minor changes.

Related tools on LangStop

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