TypeScript to JSON Converter
Convert TypeScript interfaces and types to example JSON objects. Parses property names and types to generate sample JSON with appropriate default values.
How to Use TypeScript to JSON Converter
The TypeScript to JSON Converter transforms TypeScript interfaces and type definitions into example JSON objects. Paste your interface or type definition and the tool parses each property, inferring appropriate default values based on the declared types — strings become "example", numbers become 0, booleans become false, arrays become empty arrays, and optional properties become null. Perfect for quickly generating mock data from type definitions, creating API documentation examples, or bootstrapping test fixtures from your TypeScript models.
Step-by-Step Instructions
- Paste your TypeScript interface or type definition
- Click Convert to JSON
- Review the generated JSON with inferred default values
- Copy the JSON for use in tests, docs, or mock data
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