JSON to Kotlin Converter
// Generate Kotlin data classes from JSON
#About JSON to Kotlin Converter
Free online JSON to Kotlin converter. Automatically generate Kotlin data classes from JSON data. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
#FAQ
How do I generate Kotlin data classes from JSON? ▾
Paste your JSON into the input field and the tool will produce Kotlin data classes with val properties. Nested objects become separate data classes with proper type references.
What Kotlin types does the converter produce? ▾
The converter maps JSON strings to String, integers to Int, decimals to Double, booleans to Boolean, and arrays to List<T>. Null values are typed as Any?.
</> Embed this tool ▾
Copy this code to embed the tool on your website. Adjust the height to fit your layout.
<iframe src="https://www.browserutils.dev/embed/json-to-kotlin" width="100%" height="500" frameborder="0" title="JSON to Kotlin Converter"></iframe>