JSON to Kotlin Data Class
Generate Kotlin data classes with kotlinx.serialization or Moshi annotations from JSON.
The full specification and SEO index for this tool is live. The interactive client-side converter is currently in build queue.
{
"status": "ready_for_converter",
"tool_slug": "json-to-kotlin",
"tool_name": "JSON to Kotlin Data Class",
"category": "json-to-code-and-models",
"priority": "P3",
"client_side_ready": true
} ✓ How to Use the JSON to Kotlin Data Class
- 1
Paste your JSON payload into the input editor.
- 2
Select serialization library (kotlinx.serialization, Moshi, Jackson).
- 3
Review the generated Kotlin data classes.
- 4
Copy the code into your Android or Kotlin project.
JSON to Kotlin Data Class: Overview & Capabilities
A JSON to Kotlin converter generates concise Kotlin `data class` models with null safety and serialization annotations from JSON payloads.
Generate Kotlin data classes with kotlinx.serialization or Moshi annotations from JSON. Engineered for developers, it runs 100% client-side in your browser for zero latency and complete privacy—no data is ever stored or transmitted across remote networks.
Explore deeper technical specifications in our comprehensive guide: JSON to Code and Models Developer Reference Guide →
Key Capabilities
- Generates immutable Kotlin data classes with val properties
- Support for kotlinx.serialization (@SerialName) and Moshi
- Full Kotlin null-safety (? type) support
- Generates default values for missing keys
Frequently Asked Questions
Is it compatible with Android Jetpack Compose?
Yes, the generated immutable data classes are ideal for Compose state.
Does it support kotlinx.serialization?
Yes, it generates @Serializable annotations and @SerialName attributes.
How are null values handled in Kotlin?
Null values are mapped to nullable Kotlin types (e.g. String?).
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