JSON to TypeScript
CODEConvert JSON objects to TypeScript interface definitions.
ℹ️ About JSON to TypeScript
JSON to TypeScript is a free online code tool from Tools Coaster. Convert JSON objects to TypeScript interface definitions. It is handy for json, typescript, interface tasks. It runs entirely in your browser — no sign-up, no installs, and nothing you enter ever leaves your device.
📖 How to Use JSON to TypeScript
1
Paste your code
Enter the source, markup, or snippet you want to convert.
2
Run JSON to TypeScript
The conversion runs instantly on your input.
3
Read the output
Check the converted code in the output panel.
4
Copy into your editor
Copy the result and paste it straight into your project.
💡 Examples
Worked example
INPUT
{"id": 1, "name": "Ada", "active": true}→
OUTPUT
interface Root {
id: number;
name: string;
active: boolean;
}🚀 Pro Tips
✓Works with any language or markup since it treats input as text.
✓Great for quick one-off conversions you would otherwise script by hand.
✓Validate the output before committing — generated code is a starting point, not a guarantee.
✓Everything runs locally in your browser — your input is never uploaded to a server, so it is safe for private or sensitive data.
✓Combine with the JSON and formatter tools to clean input first.