PlayWithJSON

JSON to Zod Schema Converter

Zod Validation

Generate Zod schemas with inferred TypeScript types from any JSON or JSON5 payload instantly in your browser.

Samples:
Indent:
JSON / JSON5 InputJSON
19 lines | 409 charsJSON
Zod Schema OutputZOD
import { z } from 'zod';

export const rootSchema = z.object({
  status: z.string(),
  statusCode: z.number(),
  data: z.object({
    userId: z.string(),
    username: z.string(),
    email: z.string(),
    profile: z.object({
      firstName: z.string(),
      lastName: z.string(),
      skills: z.array(z.string()),
    }),
    preferences: z.object({
      theme: z.string(),
      notifications: z.boolean(),
    }),
  }),
  timestamp: z.string(),
});

export type Root = z.infer<typeof rootSchema>;
23 lines | 504 charsZOD

JSON to Zod Schema Converter Online

Generate Zod validation schemas from any JSON or JSON5 payload. The converter infers strings, numbers, booleans, nullable values, nested objects, arrays and unions, and can also export the inferred TypeScript type with z.infer.

All processing happens in your browser, so API responses and configuration files are never uploaded to a server.

{}

Why Use PlayWithJSON?

  • Zod schemas generated instantly
  • Optional fields detected from array items
  • Nullable and union types supported
  • Optional z.infer type export
  • 100% client-side and offline capable

What Can You Do With Our JSON to Zod Converter?

Live Schema Generation

The schema updates as you edit the JSON, with precise error lines for invalid input.

Runtime Validation Ready

Use the generated schema with parse() or safeParse() to validate untrusted data.

Inferred TypeScript Types

Optionally export a type alias using z.infer so schema and type never drift apart.

Strict Objects & Integers

Toggle .strict() on objects and .int() on whole numbers to tighten validation.

JSON5 Input Support

Comments, trailing commas and unquoted keys are accepted in the input.

Copy or Download

Copy the schema or download it as a ready-to-use .ts file.

How to Convert JSON to a Zod Schema Online

1

Paste Your JSON

Paste JSON or JSON5 into the left panel or load a sample.

2

Pick Your Options

Choose the root name, strict objects, integer detection and type export.

3

Review the Schema

The Zod schema updates instantly on the right.

4

Copy or Download

Copy the result or download it as a .ts file.

JSON to Zod Example

JSON (Input)
{ "id": 1, "name": "Asha", "nickname": null, "tags": ["admin", "beta"] }
Zod Schema (Generated)
1import { z } from 'zod';
2
3export const rootSchema = z.object({
4 id: z.number(),
5 name: z.string(),
6 nickname: z.null(),
7 tags: z.array(z.string()),
8});
9
10export type Root = z.infer<typeof rootSchema>;

Input Validation

Invalid Input
1{
2 "name": "PlayWithJSON"
3 "fast": true
4}
Syntax error: missing comma between properties
Valid Input
1{
2 "name": "PlayWithJSON",
3 "fast": true
4}

Supported Features

z.object, z.array and z.union generation
Nullable value detection
Optional property detection
Optional .strict() objects
Optional .int() detection
z.infer type export
Custom root name
JSON5 input parsing
Copy and download as .ts
Works on mobile and desktop
100% private in-browser processing
Frequently Asked Questions

Frequently Asked Questions about JSON to Zod

Zod is a TypeScript-first schema validation library. You define a schema once and get both runtime validation and a statically inferred TypeScript type.

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