JSON to TypeScript
Turn a sample JSON payload into TypeScript interfaces. Paste the JSON and get typed interfaces with nested objects and arrays inferred automatically.
Última actualización: July 2026
JSON to TypeScript generates TypeScript interfaces from a sample JSON object. Paste JSON and this tool infers the type of each field — strings, numbers, booleans, arrays and nested objects (which become their own named interfaces) — and outputs ready-to-paste interface definitions. It all runs in your browser, so your data is never uploaded.
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Cómo usar JSON to TypeScript
- Paste a JSON object or array.
- Read the generated TypeScript interfaces.
- Copy them into your project.
Preguntas frecuentes
Does it handle nested objects and arrays?
Yes — nested objects become their own interfaces, and arrays infer their element type (with a union if the items differ).
Is my JSON uploaded?
No — type generation runs entirely in your browser.
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