JSON to TypeScript Generator Online
Free online codegen helper that drafts TypeScript interfaces from JSON samples for typed API clients.
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Free online codegen helper that drafts TypeScript interfaces from JSON samples for typed API clients.
How it works
This tool infers TypeScript types from your JSON structure and generates interfaces. It speeds up building typed API clients.
Example
Input:
{"id":1,"name":"Ana"}
Output:
interface Root {
id: number
name: string
}FAQ
Are inferred types always correct?
They’re based on the sample. You may need to refine optional fields and unions for real-world data.
How are arrays inferred?
Arrays are inferred from element types. Mixed arrays may become unions or unknown depending on generator rules.
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