JSON to TypeScript — Free Online Tool

Generate TypeScript interfaces from JSON objects. JSON to TypeScript is a free online tool from the ToolsRift JSON Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use JSON to TypeScript

  1. Open the JSON to TypeScript above — it loads instantly, no account needed.
  2. Enter or upload your input. Everything is processed locally on your device.
  3. Get your result immediately and copy or download it with one click.

Frequently asked questions

Can it handle nested objects?

Yes — nested objects become nested interfaces or inline types automatically.

What about arrays?

Arrays of objects generate typed array signatures like UserItem[].

Does it handle optional fields?

Fields are marked as required by default. Manually add ? for optional fields.

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