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JSON to Swift Converter — Codable Structs for iOS

Paste JSON to generate a Swift struct conforming to Codable — ready to use directly with JSONDecoder for real API response parsing in an iOS or macOS app, with correctly inferred property types and optionals for fields that may be absent.

How to use JSON to Swift

1. Paste your JSON.
2. Review the generated Codable struct.
3. Copy it into your Xcode project.

Frequently asked questions

Does the struct work directly with JSONDecoder?

Yes — conforming to Codable means the generated struct decodes directly from JSON data with no additional parsing code needed.

How are nested JSON objects handled?

Nested objects generate their own Codable struct referenced from the parent struct.

What about JSON keys that don't match Swift naming conventions?

A CodingKeys enum is included when needed to map Swift property names back to the original JSON keys, such as snake_case fields.

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Also searched for: json to swift codable generator · json to swift struct online · swift codable from json converter

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