JSON to TypeScript Interface Generator

Infer readable TypeScript interfaces from a pasted JSON sample locally. Review nullability and unions before using the types in production.

How to use this tool

1. Open JSON to TypeScript Interface Generator and add only the details or file you have verified.
2. Use the visible action to infer readable TypeScript interfaces from pasted JSON locally without sending sample API data away.
3. Inspect the result and stated limitation before copying or downloading the output.

Questions

What does JSON to TypeScript Interface Generator do?

Infer readable TypeScript interfaces from a pasted JSON sample locally. Review nullability and unions before using the types in production. Review the output before using it outside this browser workspace.

Does JSON to TypeScript Interface Generator upload my input?

The visible result is generated from the values you enter in the current browser session.

What should I check before using JSON to TypeScript Interface Generator?

Confirm the source details, visible result, and any dev limitation shown on the page before relying on it.

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Review the visible result and keep the original source until the output works in its final context.