JSON to io-ts

Generate io-ts schema from JSON.

This tool is designed to provide a seamless experience for developers by handling complex operations directly in your browser with maximum speed and security.

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JSON to io-ts conversion is the process of translating structured JSON data into an io-ts schema, which is used for runtime type validation and static type inference in functional TypeScript. This includes creating codecs and validation rules based on the JSON structure. Our JSON to io-ts converter is a specialized tool designed to perform this translation automatically. It intelligently parses your JSON and generates valid io-ts code, providing a fast and reliable way to manage your data validation. This results in more robust type safety and improved performance for your web and mobile applications. Whether you're a developer building a new functional TypeScript app or a data architect designing complex data models, this tool provides a secure and efficient way to manage your io-ts assets.

Paste your JSON data into the editor. The tool will automatically generate the corresponding io-ts schema, including types and codecs. You can then copy the generated code to your clipboard for use in your functional TypeScript projects.

In modern functional TypeScript development, io-ts is essential for building robust and type-safe applications that adhere to functional programming principles. However, manually writing io-ts schemas for large datasets can be difficult and error-prone. Our JSON to io-ts converter provides an instant, easy-to-use solution for generating these schemas. It's an essential tool for frontend and backend engineers who want to ensure their applications are as robust and scalable as possible. Beyond simple schema generation, using io-ts also provides a degree of clarity and transparency. Like all our tools, it runs entirely in your browser, so your proprietary data and sensitive API details never leave your machine, providing a secure environment for your development tasks.

Example Input

{
  "id": 1,
  "name": "John Doe",
  "email": "john@example.com",
  "isActive": true,
  "tags": ["admin", "dev"],
  "profile": {
    "bio": "Software Engineer",
    "skills": ["Go", "React", "TypeScript"]
  }
}

Example Output

const User = t.type({
  id: t.number,
  name: t.string,
  email: t.string,
  isActive: t.boolean,
  tags: t.array(t.string),
  profile: t.type({
    bio: t.string,
    skills: t.array(t.string)
  })
});

Invalid JSON: The tool may fail if the JSON itself is syntactically incorrect.

Fix: Ensure your JSON data is valid before converting.

Complex Nesting: Highly nested JSON might require manual adjustment of the generated io-ts schemas.

Fix: Review the generated code for complex data structures.

Large Payloads: Extremely large JSON objects might take a moment to process.

Fix: For very large datasets, consider converting them in sections.

Does it support io-ts 2.0?

Yes, the tool generates schemas compatible with io-ts 2.0 and later.

Can I customize the schema names?

Yes, the tool provides options for specifying custom names for your io-ts schemas.

Is it safe for sensitive data?

Yes, the tool runs entirely client-side, so your data is never sent to a server.

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