How does it pick Dart 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 Dart

Input

Output

JSON to Dart

Paste a JSON sample, such as an API response, and Bracely writes Dart classes for Flutter for it. Each object becomes a Dart class with final fields and a const constructor, ready for your Flutter models.

How to use it

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

What it does

Final, typed fields
required named parameters
Nullable types for optional fields
Nested objects become their own named types
15 other languages from the same sample, including TypeScript

Questions

How does it pick Dart 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:

Runs entirely in your browser. Nothing you paste is uploaded. Made by Saurabh Pagrut. About · Privacy policy
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