Instantly parse standard JSON data into Codable-compliant Swift structs or classes for iOS and macOS development.
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Manually writing Swift data models for APIs is time-consuming and prone to errors. This tool automatically generates clean, syntax-compliant Swift data model code by parsing standard JSON strings you paste. The Swift Codable protocol is the standard solution for automatic serialization and deserialization between data models and JSON. The structs or classes generated by this tool conform to this protocol by default, making them ready for immediate use in network requests and data persistence.
Q: If JSON keys contain spaces or special characters, will the generated property names be valid?
The tool automatically converts JSON keys into camelCase property names that conform to Swift naming conventions. For example, "user_name" will generate var userName: String?.
Q: How do I use this tool to handle a user list API response?
Simply paste the JSON containing the user array. For example, if you input {"users": [{"id": 1, "name": "John"}]}, the tool will generate code containing struct User: Codable and struct Root: Codable, where the users property type is [User].
Please ensure your input is properly formatted standard JSON; otherwise, parsing will fail. The generated root type defaults to "Root", but class/struct names and property names can be manually modified according to your project's conventions. For scenarios requiring custom CodingKeys enums or complex business logic integration, please adjust the generated base code accordingly. This tool focuses solely on data model generation and does not include network request or data caching logic.
In team collaborations, we recommend treating the tool-generated model code as a "first draft." For large-scale projects, consider uniformly adding Identifiable or Equatable protocols, or configuring the dateDecodingStrategy of JSONDecoder for special fields like dates. A typical example is handling an API response with a date field: if you input {"createdAt": "2023-10-01T12:00:00Z"}, the tool will generate var createdAt: String?. Developers should manually change the type to Date and configure the ISO8601 strategy in the decoder to achieve type safety.
