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JSON to TypeScript Interface
Types from JSON.
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About JSON to TypeScript Interface
Infer TypeScript interfaces from a JSON object.
📐 Methodology & Reference Accuracy:
Calculations, formulas, and conversions execute locally in your web browser. Output models are benchmarked against official reference standards and updated for 2026.
🔒 This tool runs entirely in your browser. Nothing is uploaded or stored.
Background reading: Json To Typescript on Wikipedia. More: all developer tools.
Frequently Asked Questions about JSON to TypeScript Interface
How do I use the JSON to TypeScript Interface?
Open the JSON to TypeScript Interface and use the controls in the workspace below: types from json. Results appear instantly in your browser, with nothing to install, sign up for, or pay for.
Is the JSON to TypeScript Interface free?
Yes. The JSON to TypeScript Interface is completely free, like every tool in the PrimeFreeTools library. There are no accounts, subscriptions, or usage limits.
Does the JSON to TypeScript Interface store or share my data?
No. The JSON to TypeScript Interface runs with JavaScript in your browser, so what you enter never leaves your device and nothing is stored on a server.
What can I use the JSON to TypeScript Interface for?
Infer TypeScript interfaces from a JSON object. You will find it grouped under Developer Tools together with 78 other free tools on the PrimeFreeTools homepage.
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