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JSON to TypeScript

Generate TypeScript interfaces from a JSON sample.

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TypeScript interfaces
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Why use this json to ts

Nested interfaces

Nested objects generate their own named interfaces, not inline blobs.

Arrays typed correctly

Arrays of objects or primitives produce correctly typed array fields.

Paste straight into your codebase

Output is valid, ready-to-use TypeScript.

About the JSON to TypeScript

Paste a sample JSON response and get matching TypeScript interfaces instantly — including nested interfaces for nested objects.

Frequently asked questions

Nested interfaces are named after their parent key, capitalized — e.g. an "address" field generates an Address interface.

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