JSON to TypeScript Converter
Developer ToolsGenerate TypeScript interfaces from JSON
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All history →JSON to TypeScript Converter — at a glance
Save time by generating TypeScript types straight from a sample JSON response.
{"id":1,"name":"Asha"}
Run
interface Root {
id: number;
name: string;
}
How to use it — step by step
A JSON object or array, such as an API response.
1
Paste your input
Paste or type your content into the big input box.
2
Choose options
Pick the mode and options that fit what you need.
3
Generate Types
Press the button. The result is created instantly on your device.
4
Copy the result
Check the output and press Copy to use it anywhere.
Pro tips
Small things that make the result better.
✦Use a sample with all fields filled in for the best result.
✦Fields missing from some array items are marked optional (?).
✦Rename the root interface to match your data.
Quick facts
Nestedinterfaces created
Optionalauto detected
2 stylesinterface or type
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Frequently Asked Questions
Is the output always perfect?+
It is inferred from your sample, so check it. A field that was always a number in your sample may be a string in other data.
What about null values?+
A null value becomes the type null. Combine it with the real type if the field can be both.
Is my data safe?+
Yes. Everything runs inside your own browser. Your text, files and images are never uploaded to any server.
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