DATA & DEVELOPMENT
JSON to TypeScript Converter
Turn a JSON example into a readable starting point for TypeScript types.
A FEW SIMPLE STEPS
How to use it
- Paste valid JSON and choose a root type name.
- Review inferred nested objects and array unions.
- Copy or download the TypeScript output and check it in your project.
A CONCRETE EXAMPLE
Examples such as [{"id":1},{"id":2,"label":"Note"}] can indicate an optional label field across the observed objects.
Know the limits
One JSON sample cannot reveal every valid shape or business rule. Inferred TypeScript types do not validate data at runtime.
A good question
Can this infer every possible value from a sample?
No. Review unions, missing fields, nullability, and domain rules against your actual data.