Free XML to Swift Converter — generate Codable Swift structs from XML in your browser

Related Tools

🧬 XML to Swift — Free Online Tool

Convert XML to Swift online, free. XML is a verbose, self-describing markup format used in SOAP, RSS and enterprise systems. Swift Codable structs decode and encode JSON with compile-time safety. XML to Swift conversion parses your XML against the W3C XML 1.0 grammar (https://www.w3.org/TR/xml/), builds an in-memory model of its keys, nested objects and arrays, then emits ready-to-use Swift types following the Swift Codable conventions. Processing runs in your browser in JavaScript with no upload or server round-trip — no size limit beyond your device's memory, so multi-megabyte documents convert in milliseconds and sensitive payloads never leave your machine. Typical uses include iOS/macOS apps, Vapor services and API client models.

🚀 Why use this XML to Swift tool?

It maps the full structure of your XML onto idiomatic Swift types, following the Swift Codable conventions. 100% free, no registration, and complete privacy — everything runs locally in your browser, so your data never touches a server.

Key Features

Instant, in-browser

Paste XML and generate Swift types from Swift immediately. Conversion runs client-side, so there is no upload wait and large documents stay fast.

🧩Structure-aware mapping

Nested XML objects, tables and arrays are mapped faithfully onto Swift, including nested types and optional fields.

🔒100% private

Your XML never leaves your device — everything is processed locally in JavaScript, with nothing logged or stored.

🆓Free, no signup

Unlimited conversions with no account, no quotas, and no watermark. Works on desktop and mobile.

Popular Use Cases

Typed models from samples

  • Turn a sample XML payload into Swift types
  • Skip hand-writing boilerplate models
  • Keep front-end and back-end shapes in sync

iOS/macOS apps

  • iOS/macOS apps
  • Vapor services
  • API client models

Onboarding a new API

  • Paste an example XML response
  • Get typed Swift to consume it safely
  • Catch shape mismatches at compile time

What It Handles

Structure

  • Nested objects & tables
  • Arrays / lists
  • Deeply nested documents

Values

  • Inferred types (string, number, boolean)
  • Optional / nullable fields
  • Nested type names

Workflow

  • Copy or download output
  • Load an example to try it
  • Validate & format the input

Worked example

A XML document and its Swift equivalent:

XML input:

<product>
  <sku>A-100</sku>
  <price>19.99</price>
  <active>true</active>
</product>

Output:

struct Product: Codable {
    let sku: String
    let price: Double
    let active: Bool
}

Sources & References

Frequently Asked Questions

How do I convert XML to Swift?

Paste your XML into the editor and press "Convert to Swift". The tool parses it against the W3C XML 1.0 grammar, then generates Swift types following Swift Codable conventions — instantly and entirely in your browser. You can validate or format the XML first to be sure it is clean.

How is XML structure represented in Swift?

XML has no native numbers, booleans or arrays. Repeated child elements become lists in Swift, attributes and element text become fields, and values stay strings unless Swift coerces them — so review numeric or boolean fields after converting.

Are optional fields detected when generating Swift?

Optional or nullable members in the generated Swift are inferred from keys missing in some records of your XML, following Swift Codable. Include the optional fields in your sample so they are typed correctly.

What is the difference between XML and Swift?

XML (eXtensible Markup Language) (XML) — XML is a verbose, self-describing markup format used in SOAP, RSS and enterprise systems. Swift structs (Codable) (Swift) — Swift Codable structs decode and encode JSON with compile-time safety. This converter maps the structure of your XML onto Swift so you can use it for iOS/macOS apps.

Does the converter validate my XML first?

Yes. Invalid XML is flagged with a clear error before anything is converted. Common XML problems to check are matched start and end tags, a single root element, and quoted attribute values. Starting from clean input keeps the generated Swift accurate.

Is my XML data private?

Yes. The entire XML-to-Swift conversion runs locally in your browser in JavaScript — your XML is never uploaded, logged or stored. That matters when the data is something like SOAP web services, which should not leave your machine.

Where can I use the Swift output?

The generated Swift is ready for iOS/macOS apps, Vapor services and API client models. Copy or download it and drop it straight into your codebase.

🎓 Pro Tips

  • Tip 1: Validate or format your XML first (the Validate / Format buttons) so the converter works from clean, W3C XML 1.0-conformant input.
  • Tip 2: Give the tool a representative XML sample — optional fields are only detected from the keys actually present, so include them if they matter.
  • Tip 3: Authoritative reference for the input format: W3C XML 1.0 — https://www.w3.org/TR/xml/.
  • Tip 4: For the output, follow the Swift Codable (https://developer.apple.com/documentation/swift/codable) conventions in your codebase.