JSON to Code
Turn a JSON sample into TypeScript interfaces, Go structs, Python or JSON Schema instantly.
Generated code
How to use the JSON to Code
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Paste a JSON sample.
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Pick a target language.
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Copy the generated types.
Turn JSON into typed code
Hand-writing types for an API response is tedious and error-prone. This tool infers the shape of any JSON — including nested objects and arrays — and emits ready-to-use TypeScript interfaces, Go structs, Python TypedDicts or a JSON Schema. Paste a real payload and get types you can drop straight into your codebase.
Key features
- TypeScript, Go, Python & JSON Schema output
- Handles nested objects and arrays
- Infers strings, numbers, booleans & nulls
- Runs locally — your JSON stays private
Frequently asked questions
Does it handle nested JSON?
Yes — nested objects become their own types and arrays are typed from their first element.
Which languages are supported?
TypeScript interfaces, Go structs, Python TypedDicts and JSON Schema, with more planned.
Is my JSON uploaded?
No. Type generation runs entirely in your browser.