▤Free
JSON to TypeScript type
Infer a sample-based TypeScript type without executing input.
Infer a sample-based TypeScript type without executing input. Generate a Root type from a sample, including object properties and unions of observed array types. Input is parsed as JSON and is never executed as JavaScript.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Worked example
Example input
Input: {"name":"Ana","n":2}Example result
type Root = { "name": string; "n": number; };Limitations and details
Sample inference cannot establish optional fields, unseen variants or business constraints; manually review the generated type.
Inputs and options
- Input
- Text
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.