Developer Tools
JSON to TypeScript
Generate a draft TypeScript interface from a JSON sample.
Input / output
Top level
object
Objects
3
Arrays
1
Fields
7
Field analysis
Type graph
Rootinterface Root {
user: RootUser;
items: RootItems[];
}
interface RootItems {
sku: string;
qty?: number;
}
interface RootUser {
id: number;
name: string;
nickname?: null;
}HelpOpen usage notes, examples, practical tips, and FAQ only when you need them.
What is this tool?
JSON to TypeScript is a browser-first tool for generate a draft TypeScript interface from a JSON sample. It fits into the developer workflow and keeps the main task on one page.
How to use it
- Enter the input
Paste or edit the value in the input area. Sample values are safe placeholders for testing the tool.
- Adjust options
Choose the mode, format, unit, or count that matches the JSON types, TypeScript interface, type generator task.
- Review the result
Run the tool, inspect the output, then copy or download it only when the result matches your expectation.
Examples
JSON to TypeScript example
- Input
- Sample input
- Output
- Review the result in the browser.
Practical tips
- For large inputs, process the smallest useful sample first to keep the browser responsive.
- Ad slots are intentionally kept away from tool controls and result panes.
FAQ
What input should I use with JSON to TypeScript?
Use values that match the JSON types, TypeScript interface task, then adjust the visible options before running the tool.
Can I copy the JSON to TypeScript result?
Yes. Review the output first, then copy or download it when the result matches your expectation.
Can I use JSON to TypeScript on mobile?
Yes. The input, options, action, and result areas are designed to stack cleanly on small screens.
Will ads interrupt JSON to TypeScript?
No. Ad slots stay outside the input, output, and primary action areas so the tool remains usable and policy-safe.