ToolGrid AIJSON to TypeScript
Infer a TypeScript type from a JSON sample, including nested arrays.
Runs entirely in your browser — your selected files are not uploaded by this tool. Device-provided speech voices may use online services.
About this free json to typescript tool
Infer a TypeScript type from a JSON sample, including nested arrays. Developer utilities inspect or transform data locally rather than contacting the address or service shown in your input. Use fictional samples while checking a format, keep credentials out of shared screenshots and validate the result against the receiving system. Successful parsing does not establish trust, security or schema correctness.
A practical example
A concrete example uses input text: {"name":"Sam","tags":[1,"a"]}. The result is type Root = { "name": string; "tags": Array<number | string>; };.
Before you rely on the result
Types are inferred from a sample, not a complete schema. Unseen optional fields, date semantics and business constraints are not inferred.