Developer tools
JSON to Zod Schema

JSON to Zod schema generator

Turn any JSON payload into a ready-to-use Zod validation schema with inferred TypeScript types in one click. CodeForge runs a deterministic local generator on your device — no AI guesswork and no data uploaded.

Open JSON to Zod Schema — free Get the Windows app

Free in your browser — no sign-up. Install from the Microsoft Store to use it offline on Windows 10 and 11.

How to use it

Open the JSON tool and paste a sample JSON object or array.
Choose Convert to → Zod (TS) to preview or generate the schema.
Copy the generated z.object(...) schema and z.infer types into your TypeScript project.

Example

JSON input

{
  "id": 42,
  "name": "Ada Lovelace",
  "active": true,
  "roles": ["admin"]
}

Generated Zod schema

import { z } from 'zod';

export const RootSchema = z.object({
  id: z.number(),
  name: z.string(),
  active: z.boolean(),
  roles: z.array(z.string()),
});

export type Root = z.infer<typeof RootSchema>;

Features

Complete Zod schemas — infers z.string(), z.number(), z.boolean(), z.array(), and nested z.object() definitions. PRO
Automatic z.infer types — exports both runtime validation schemas and static TypeScript types.
Optional fields toggle — wrap properties in .optional() when generating partial schemas.
100% offline & deterministic — runs locally in your browser or the Windows app.

Frequently asked questions

Does JSON to Zod use AI?

No. CodeForge uses a deterministic local type inference engine, so the output is instant, consistent, and never sends your JSON over the network.

Can I preview the Zod output on the free plan?

Yes. Free users can preview the generated Zod schema right in the output pane; Pro unlocks the full schema and nested sub-schemas across 9 languages.

One workspace for all of it

JSON to Zod Schema is one of 18 developer tools in CodeForge — alongside a JSON formatter, JWT decoder, regex tester, UUID and hash generators, and more. Press Ctrl+K to jump to any of them.