JSON to TypeScript Interface
Generate TypeScript interfaces from JSON automatically, including nested objects and arrays. Free online converter.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
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Result
How to use JSON to TypeScript Interface
- 1Paste or type your text in the left box (or open a file).
- 2The converted result appears instantly on the right.
- 3Copy it with one click or download it as a file.
Questions
Is JSON to TypeScript Interface free?
Yes. JSON to TypeScript Interface is 100% free with no limits, no watermark, no sign up and no email required.
Is my data sent anywhere?
No. Everything is calculated locally in your browser. Nothing you type is sent to or stored on any server.
Does JSON to TypeScript Interface work on my phone?
Yes. JSON to TypeScript Interface works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.