JSON to Zod, Go and Pydantic

Convert JSON into a Zod schema, a Go struct, or a Pydantic model with automatic type inference, nested types, and array detection. Free, runs entirely in your browser.

JSON to Zod, Go and Pydantic

Generate a Zod schema, Go struct, or Pydantic model from any JSON

Characters: 0

Paste JSON above to generate Zod (TypeScript)

Nested objects become separate named types. Arrays are typed from their first element with object keys merged across items. Everything runs in your browser.

What is a JSON to Zod, Go and Pydantic converter?

This tool takes a JSON object and generates a matching type definition in one of three popular formats: a Zod schema for TypeScript runtime validation, a Go struct with JSON tags, or a Pydantic model for Python. Writing these by hand from an API response is slow and error prone.

CodeHelper's converter infers types recursively, extracts nested objects into their own named types, and detects array element types by merging keys across items, so the output compiles cleanly.

Key Features

  • Three targets: Zod, Go struct, and Pydantic, switchable with one click.
  • Type inference: strings, numbers (int vs float), booleans, null, arrays, and nested objects.
  • Named nested types: nested objects become reusable named schemas, structs, or classes.
  • Array detection: element types are inferred and object keys merged across items.
  • Private: the JSON never leaves your browser.

How to use the converter

  1. Paste your JSON into the input area.
  2. Pick Zod, Go, or Pydantic.
  3. Copy the generated schema or download it.

Ideal for typing REST API responses, validating request bodies, and bootstrapping models in a new TypeScript, Go, or Python project.

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