JSON to TypeScript Interface Generator

Convert JSON to TypeScript interface definitions with type safety.

How to use

  • Paste your JSON in the input area
  • Specify the interface name for type safety
  • The converter generates a TypeScript interface
  • Copy to your TypeScript project

Frequently Asked Questions

What is a TypeScript interface?

An interface defines the shape of an object, specifying which properties it must have and their types. This provides type safety.

Does it handle optional fields?

If fields are not present in all JSON objects, they're marked as optional (with ?) in the generated interface.

Can I use this for API responses?

Yes! This is perfect for defining types for API responses. Generate interfaces and use them with fetch or axios.

What about nested objects?

Nested objects are converted to nested interfaces, maintaining the JSON structure and providing full type safety.