How does it pick Kotlin types?

From the values in your sample: whole numbers, decimals, text, true/false, arrays and nested objects. When array items disagree, the field is made optional or widened.

Can I generate other languages?

Yes. Change Language to TypeScript, Go, Python, Pydantic, Java, C#, Rust, Kotlin, Swift, Scala, Ruby, Dart, PHP, Zod, GraphQL or Protobuf.

No. Bracely runs entirely in your browser, so nothing you paste or open leaves your device.

JSON to Kotlin

Input

Output

JSON to Kotlin

Paste a JSON sample, such as an API response, and Bracely writes Kotlin data classes for kotlinx.serialization for it. Each object becomes a @Serializable data class, with @SerialName where a key needs it.

How to use it

Paste a JSON sample.
Set the root type name, for example Order.
Copy the Kotlin code into your project.

What it does

@Serializable data classes
Nullable types with defaults for optional fields
List<T> for arrays
Nested objects become their own named types
15 other languages from the same sample, including TypeScript

Questions

How does it pick Kotlin types?: From the values in your sample: whole numbers, decimals, text, true/false, arrays and nested objects. When array items disagree, the field is made optional or widened.
Can I generate other languages?: Yes. Change Language to TypeScript, Go, Python, Pydantic, Java, C#, Rust, Kotlin, Swift, Scala, Ruby, Dart, PHP, Zod, GraphQL or Protobuf.
Is my data uploaded?: No. Bracely runs entirely in your browser, so nothing you paste or open leaves your device.

More JSON tools

Bracely has more than 65 JSON tools in one page. Related ones:

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