Free Online JSON to Kotlin Data Class

Free online JSON to Kotlin Data Class. Runs locally in your browser with zero uploads for privacy and speed.

Root type nameAnnotation

JSON Input

Note: mixed types/mixed arrays degrade to Any?; missing/null fields generate nullable types.

Kotlin Output

import kotlinx.serialization.Serializable

@Serializable
data class AutoGeneratedProfile(
  val email: String
)

@Serializable
data class AutoGenerated(
  val id: Long,
  val name: String,
  val profile: AutoGeneratedProfile,
  val tags: List<String?>
)