INPUT - JSON
OUTPUT - Zod
Output will appear here
100% client-side
Output will appear here
Generate Zod validation schemas from JSON data with our free JSON to Zod converter. The tool auto-detects email, URL, UUID, and date formats and applies matching validators, producing a single source of truth for both TypeScript types and runtime validation. Perfect for API input validation and form handling in modern TypeScript projects.
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Enter any valid JSON in the input editor. The converter works with objects, arrays, and primitive values of any depth.
The output pane shows a complete Zod schema with z.object(), z.array(), z.string(), z.number(), and format-specific validators like z.string().email().
Copy the schema or download it as a .ts file. Import it in your project to get both compile-time types and runtime validation from a single source of truth.
The converter inspects string values for patterns matching emails, URLs, UUIDs, and ISO 8601 dates. When a match is found it applies the corresponding Zod validator such as z.string().email(), giving you stricter runtime validation out of the box.
Yes. The generated schema is a standard Zod object, so you can wrap it with z.infer<typeof schema> to derive a static TypeScript type. This gives you both compile-time types and runtime validation from one definition.
Fields with null values in your JSON are output as z.nullable(). If you need a field to be optional you can append .optional() after generation. The tool preserves null vs. undefined semantics accurately.
The generated schemas target Zod v3, the current stable release. They use the standard z.object / z.array / z.string API surface and are compatible with all Zod v3.x minor versions.