A little less busywork
JSON to Kotlin
Generate nested Kotlin data classes from a JSON object.
Your input
Runs locally. Your input is never uploaded or saved.
Output
Your result will appear here.
How to use this tool
Generate plain Kotlin models without a serialization dependency. Original JSON keys are preserved in comments. Add annotations for your chosen serializer when field names differ, and review numeric ranges.
Keep your workflow private
This utility processes input only in this tab. It does not upload or persist pasted content. Review generated output before using it in a production application.
Need a complete starter? Generate a Flutter project →