How are json to swift codable nested objects named?

Each nested JSON object becomes its own struct type, typically named from the parent key in PascalCase for readable Swift code.

Does generation include decoding error handling?

Swift output includes standard Codable conformance; wrap decode calls with do/catch in your networking layer.

Yes. Change the language selector to TypeScript, Python, or Kotlin without leaving the page.

iOS apps decoding complex GraphQL or REST trees need separate Codable types per nested object—not one flat struct with dictionaries.

Paste nested JSON and generate Swift structs named from keys, with child types for embedded objects and arrays.

SwiftUI and UIKit projects use the output to wire URLSession decoders quickly while keeping sample payloads on-device only.

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Nested catalog JSON

{"category":{"id":3,"items":[{"name":"Pen","qty":2}]}}

Swift usage

let catalog = try JSONDecoder().decode(Model.self, from: data)

How are json to swift codable nested objects named?: Each nested JSON object becomes its own struct type, typically named from the parent key in PascalCase for readable Swift code.
Does generation include decoding error handling?: Swift output includes standard Codable conformance; wrap decode calls with do/catch in your networking layer.
Can I export TypeScript from the same nested JSON?: Yes. Change the language selector to TypeScript, Python, or Kotlin without leaving the page.