JSON to Zod Converter
ConvertersGenerate a Zod schema from a JSON object instantly in your browser. Type-inferred z.object, z.array, z.string, z.number. One-way. 100% client-side and free.
JSON →
Zod
JSONjson
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Zodtypescript
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Input: 315 chars
About JSON to Zod Converter
The JSON to Zod converter analyses a JSON sample and generates a Zod schema using a custom schema inference engine. Object values become `z.object({})` shapes, arrays become `z.array(T)`, strings become `z.string()`, numbers become `z.number()`, booleans become `z.boolean()`, and null becomes `z.null()`. The output is ready to paste into a TypeScript project that uses the `zod` library.
Features
- ✓Custom JSON-to-Zod schema inference engine
- ✓Generates z.object, z.array, z.string, z.number, z.boolean, z.null
- ✓Nested objects produce nested z.object shapes
- ✓JSON arrays produce z.array(element type) schemas
- ✓Mixed-type arrays produce z.union([...]) schemas
- ✓Optional fields detected from partial samples produce .optional()
- ✓Download generated Zod schema as a .ts file
- ✓Copy output to clipboard in one click
- ✓Web Worker processing — never blocks the UI
- ✓100% client-side — data never leaves your browser
Common Use Cases
- Generating Zod validation schemas from JSON API response samples
- Creating Zod schemas for runtime validation in TypeScript projects
- Scaffolding Zod input validation for tRPC or Next.js API routes
- Reverse-engineering JSON to Zod schemas for form validation libraries
- Generating Zod schemas from JSON configuration files
Frequently Asked Questions
QDoes the output include zod imports?
Yes — the output includes import { z } from 'zod'; at the top.
QHow does it handle arrays with mixed types?
Mixed-type arrays produce a z.union([...]) element type. If all elements are the same type, a simple z.array(T) is used.
QIs my data sent to a server?
No. All schema generation runs in a Web Worker inside your browser.