JSON to TypeScript Converter
Generate TypeScript interfaces from any JSON sample, including nested objects and arrays. Enter your values and press the action button to see the result.
About JSON to TypeScript Converter
Generate TypeScript interfaces from any JSON sample, including nested objects and arrays. Press Generate to see the result in the results panel. Everything runs locally in your browser; nothing is uploaded. Only the current result is shown — no history or side-by-side comparison.
JSON to TypeScript Converter reads "Paste JSON" and "Root interface name" from the form above and writes the answer into the results panel. There is no account, no upload and no server round-trip: the JavaScript on this page does the work on your own device.
How to use JSON to TypeScript Converter
- Open JSON to TypeScript Converter from Text & Code, or find it with the search box in the header.
- Fill in the fields shown above: "Paste JSON" and "Root interface name".
- Press Generate. The result replaces whatever was shown before; only the current run is displayed, never two results side by side.
- Use Copy to put the result on your clipboard. A message appears only when something was actually copied.
A worked example
The form opens with these values: Root interface name = Root. Press Generate once to see how the output is laid out, then replace them with your own data and press again — the new result replaces the old one.
Frequently asked questions
Is what I type uploaded anywhere?
No. JSON to TypeScript Converter processes "Paste JSON" and "Root interface name" with JavaScript inside your browser. Your inputs and the result stay on your device; Utilixo keeps no copy of them.
Can I keep several results to compare?
No. Each press of Generate rebuilds the result from the current inputs and overwrites the previous one. To compare runs, note the earlier result down yourself.
Anything specific to watch with JSON to TypeScript Converter?
The result depends only on the fields shown above ("Paste JSON" and "Root interface name"); change one of them and press Generate again to get an updated answer.
How do I take the result away?
Press Copy after a result appears. The copy button only reports success when there is content to copy.
Do I need to sign up or pay?
No. JSON to TypeScript Converter is free, needs no registration and has no usage limit. Open the page and use it.
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Further reading
Read the Text & Code guide for a longer walkthrough of every tool in this category, with practical examples and tips.