Zod to GraphQL Schema Converter

Convert Zod validation schemas into standard GraphQL SDL types, inputs, and enums in your browser.

At a glance

Zod to GraphQL Schema Converter compiles runtime Zod schemas into GraphQL Schema Definition Language (SDL). It translates z.object into GraphQL types or input objects, maps primitive scalars to String, Float, Int, and Boolean, handles non-null modifiers, converts z.enum to SDL enums, and formats docstrings.

Universal Switcher:
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Developer Suite: Zod to GraphQL GraphQL to Zod Zod to OpenAPI Zod to JSON Schema Zod to TS TS to Zod

100% Client-Side In-Browser Zod to GraphQL Schema Generator

Compile runtime Zod schemas into GraphQL SDL types, inputs, enums, and non-null definitions instantly in browser memory. Zero network traffic or cloud uploads.

Pure In-Browser
Presets:
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Schema Configuration Options
Valid GraphQL SDL (October 2021)
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GraphQL to Zod

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Zod to OpenAPI

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Zod to JSON Schema

Convert Zod validation models into JSON Schema Draft-07 / 2020-12.
Zod to TypeScript

Extract static TypeScript types and interfaces from runtime Zod schemas.

Why Use This Zod to GraphQL Schema Converter?

100% Client-Side Conversion: Runs entirely in browser JavaScript memory with zero data transmission.
Automatic Non-Null Mapping: Required Zod fields emit trailing exclamation marks (!), while .optional() or .nullable() fields emit optional types.
Int and Float Precision: Maps z.number().int() to GraphQL Int! and general z.number() to GraphQL Float!.
Enum & Nested Type Compilation: Unrolls z.enum into standard SDL enums and nested z.object models into dedicated types.
Type & Input Mode: Flexible generation for GraphQL read queries (type) and write mutations (input).

How to Use Zod to GraphQL Schema Converter

1

Provide Zod Schema Source

Paste or type your runtime Zod object schema definitions into the left editor panel.

2

Select Mode & Options

Choose between GraphQL Object Type (type) or Input Object (input) mode, and optionally set a custom root name.

3

Export Generated SDL

Copy the formatted GraphQL SDL directly to your clipboard or download it as a .graphql schema file.

Zod User Schema to GraphQL Type

Demonstrates converting a Zod user schema with UUID, string, optional integer, and enum fields into clean GraphQL SDL types.

Zod Schema Input Source 
const userSchema = z.object({
  id: z.string().uuid(),
  name: z.string(),
  email: z.string().email(),
  age: z.number().int().optional(),
  role: z.enum(['ADMIN', 'USER']),
});
GraphQL SDL Output Processed 
enum Role {
  ADMIN
  USER
}

type User {
  id: String!
  name: String!
  email: String!
  age: Int
  role: Role!
}

Technical Specifications & Engine Details

Technical specifications and engine details for Zod to GraphQL Schema Converter
Specification Details
Supported Formats TEXT → TEXT
Execution Mode 100% Client-Side In-Browser (client)
Browser Requirements Modern browser with JavaScript enabled.
Performance Constraints Zero external dependencies. Runs 100% client-side in browser memory.
Maintained by Pragyan Pahadi

100% Client-Side Privacy Guarantee

Your files and data remain strictly on your local device. Computations run locally using browser memory with zero network uploads.

Frequently Asked Questions

How does this tool map Zod required and optional fields to GraphQL?
By default, fields in Zod are required and map to non-null GraphQL types with an exclamation mark (e.g. String!). When .optional(), .nullable(), or .nullish() is added to a Zod property, the trailing exclamation mark is omitted (e.g. String).
Can I generate GraphQL input objects for mutations?
Yes. Switch the Output Mode option to Input Object (input) to wrap definitions as input UserInput { ... } with input-compatible default values.
Does this tool support z.enum and nested z.object schemas?
Yes. z.enum definitions are parsed and compiled into top-level enum declarations, and nested z.object declarations are unrolled into companion types referenced by the parent.
Is my schema data private?
Yes. 100% of the lexical parsing and GraphQL SDL formatting occurs in your local browser sandbox. No source code or schemas are sent to external servers.

Methodology

This tool runs entirely in your browser. The example above shows a representative input and the result it produces.

Last updated .

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