GraphQL to Zod Converter

Input

Output

import { z } from "zod";

export const RoleSchema = z.enum(["ADMIN", "MEMBER"]);
export type Role = z.infer<typeof RoleSchema>;

export const UserSchema = z.object({
  id: z.string(),
  email: z.string(),
  nickname: z.string().nullable(),
  role: RoleSchema,
  posts: z.array(z.lazy(() => PostSchema)),
  createdAt: z.unknown(),
}).strict();
export type User = z.infer<typeof UserSchema>;

export const PostSchema = z.object({
  id: z.string(),
  title: z.string(),
  body: z.string().nullable(),
  author: z.lazy(() => UserSchema).nullable(),
}).strict();
export type Post = z.infer<typeof PostSchema>;

export const CreateUserInputSchema = z.object({
  email: z.string(),
  nickname: z.string().nullish(),
  role: RoleSchema.nullish(),
}).strict();
export type CreateUserInput = z.infer<typeof CreateUserInputSchema>;

Review generated schemas before pasting them into production code.

graphql to zod

Paste GraphQL SDL and FrameworkKit generates Zod schema starters for supported type, input, enum, and scalar definitions. The browser workflow is designed for response validation and input-shape review.

Supported GraphQL SDL

The v1 converter supports object types, input objects, enums, custom scalar diagnostics, references, list types, and non-null modifiers.

Type and input definitions become z.object schemas.
Enum definitions become reusable z.enum schemas.
Custom scalars, directives, interfaces, unions, and operations are surfaced as diagnostics.

Review before production

Generated schemas are starters. Review resolver behavior, custom scalars, directives, federation metadata, fragments, and response selection sets before using them as production validators.

What this tool does

Generate Zod validation starters from GraphQL SDL type, input, enum, and scalar definitions.

Validate GraphQL payloads

Generate Zod schemas for GraphQL response objects before they enter React, Next.js, or service code.

Mirror GraphQL nullability

Convert GraphQL non-null and list syntax into Zod nullable, nullish, and array schema starters.

Review custom scalars

Surface custom scalar fields as diagnostics so teams can add domain-specific Zod validation manually.

Privacy model

GraphQL to Zod runs in your browser. FrameworkKit does not send tool input or generated output to a server in the current app.

Guides

Guide coverage will ship with the live release.

Comparisons

Comparison pages are planned after the workflow is live.

FAQ

Does GraphQL to Zod execute schema code?

No. FrameworkKit parses supported GraphQL SDL text in the browser. It does not run resolvers, operations, fragments, or server code.

How does GraphQL nullability map to Zod?

Non-null GraphQL fields are required Zod values. Nullable output fields use .nullable(), while nullable input fields use .nullish() so omitted or null values can pass.

Are GraphQL directives supported?

Directives are reported as diagnostics and are not evaluated. Review auth, defaults, deprecations, and federation metadata manually.

How are custom scalars converted?

Custom scalars are mapped to z.unknown() with a warning so teams can replace them with domain-specific validators.