What languages can I generate code for?

You can generate typed definitions for languages such as TypeScript, Go, and Python from a JSON sample. Pick the target language above.

Does it handle nested objects and arrays?

Yes. Nested objects become nested types and arrays are typed by their element shape, so the generated code mirrors your JSON structure.

Is my JSON sent anywhere?

No. Code generation happens locally in your browser, so your JSON stays private.

All tools/Convert

JSON to Code

Runs locally

Instantly convert JSON objects into typed definitions and structs for any language.

JSON Input

Root Type:

Output

Code preview appears here.

Turn a JSON sample into ready-to-use type definitions and model classes for your language — TypeScript interfaces, Go structs, Python classes, and more. Paste JSON and get typed code that matches its shape, generated entirely in your browser.

How to generate code from JSON

1Paste a representative JSON object or array.
2Choose your target language (TypeScript, Go, Python, and others).
3Copy the generated types or classes into your project.

From API response to typed model

When you're consuming an API, hand-writing types to match its JSON is tedious and error-prone. Pasting a real response and generating the types instead gives you an accurate starting point in seconds, complete with nested objects and arrays mapped to the right structures.

Frequently asked questions

What languages can I generate code for?: You can generate typed definitions for languages such as TypeScript, Go, and Python from a JSON sample. Pick the target language above.
Does it handle nested objects and arrays?: Yes. Nested objects become nested types and arrays are typed by their element shape, so the generated code mirrors your JSON structure.
Is my JSON sent anywhere?: No. Code generation happens locally in your browser, so your JSON stays private.