Output appears here...Why JSON to TypeScript
- Infers types from any JSON sample.
- Handles arrays with mixed types via union types.
- Quotes property keys when needed for valid TypeScript.
Common questions
Is JSON to TypeScript free to use?
Yes. JSON to TypeScript is completely free. There is no sign up, no trial, and no usage cap.
Do I need an account to use JSON to TypeScript?
No. You can start using JSON to TypeScript straight away. We do not ask for an email address or a login.
Is my data uploaded to a server when I use JSON to TypeScript?
No. JSON to TypeScript runs entirely inside your browser, so the code or data you enter never leaves your device and nothing is sent to us.
Do you store the code or data I use with JSON to TypeScript?
No. Because everything happens locally in your browser, there is nothing for us to store. Close the tab and it is gone.
Can I paste minified or messy code into JSON to TypeScript?
Yes. JSON to TypeScript handles compact, minified, or untidy input and processes it the same way.
Does JSON to TypeScript flag errors in my input?
Where it applies, JSON to TypeScript points out where something looks invalid so you can fix it quickly.
How do I use JSON to TypeScript?
Enter or paste your code or data and JSON to TypeScript updates the result as you go. When it looks right, copy or download it with one click.
Does JSON to TypeScript work on phones and tablets?
Yes. JSON to TypeScript is responsive and works in any modern browser on mobile, tablet, and desktop.
Which browsers does JSON to TypeScript support?
It works in current versions of Chrome, Firefox, Safari, and Edge. For the best experience, keep your browser up to date.
Is there a limit on how often I can use JSON to TypeScript?
No. You can use JSON to TypeScript as many times as you need, at no cost.
Can I use JSON to TypeScript for commercial or client work?
Yes. You are free to use the output in personal, educational, and commercial projects.
Why is JSON to TypeScript free?
The site is supported by advertising, which lets us keep every tool free and open to everyone.
What should I do if JSON to TypeScript gives an unexpected result?
First check that your code or data is formatted as expected. If something still looks wrong, use the feedback link on the page and we will take a look.