Is my JSON data uploaded to a server?

No. The conversion runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.

Which Scala types are used?

Numbers map to Long or Double and arrays become List[T]. Each nested object becomes its own case class referenced from the parent.

What about keys with dashes or other special characters?

Exotic keys are preserved exactly as they appear in the JSON, wrapped in backticks, without any renaming.

JSON to Scala Case Class Converter

JSON to Scala Case Class Converter — Free Online Tool

Convert JSON to Scala case classes instantly in your browser. Free, private and offline-friendly: your data never leaves your device.

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Root name

JSON input

Scala output

Why convert JSON to Scala?

Modeling JSON payloads with Scala case classes by hand takes time. Paste a sample JSON document above and get ready-to-use case classes in milliseconds, including nested objects and arrays.

How it works

The converter parses your JSON locally and generates Scala case classes. Integers map to Long, floats to Double, and arrays to List[T]. Keys with dashes or other exotic characters are kept unchanged between backticks, so the generated code compiles without renaming anything.

Frequently asked questions

Is my JSON data uploaded to a server?: No. The conversion runs entirely in your browser with JavaScript. Nothing is sent over the network, which makes the tool safe for sensitive data.
Which Scala types are used?: Numbers map to Long or Double and arrays become List[T]. Each nested object becomes its own case class referenced from the parent.
What about keys with dashes or other special characters?: Exotic keys are preserved exactly as they appear in the JSON, wrapped in backticks, without any renaming.