JSON to Kotlin Data Class Generator
Generate Kotlin @Serializable data classes with @SerialName annotations from JSON.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. No data is ever transmitted across the network.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
How to Use JSON to Kotlin Data Class Generator
Paste your raw JSON response into the workspace.
Specify the root Kotlin data class name.
Copy or download the .kt source file.
Frequently Asked Questions
Which serialization library is used?
The generated classes are built for `kotlinx.serialization` (the official Kotlin multiplatform standard).
Are null values handled?
Yes, nullable JSON properties are declared with Kotlin nullable types (`String?`, `Any?`).
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