Is TypeScript code parsed and converted entirely within the local browser session?

Yes. All TypeScript tokenization and AST-to-GraphQL SDL transformations execute client-side using JavaScript AST engines. No source code, types, or schema data are transmitted to external servers.

How does the converter handle TypeScript interface inheritance with extends?

Because GraphQL object types do not support direct class-like inheritance, the converter flattens inherited parent interface fields directly into the derived GraphQL type, preserving full field parity.

Can the generator produce GraphQL input types distinct from query object types?

Yes. When `generateInputs` is enabled, the tool creates parallel `input` definitions with an `Input` suffix, automatically stripping auto-incrementing ID fields and recursive relation structures.

How are TypeScript string union literals translated into GraphQL specifications?

Pure string literal unions (such as `'DRAFT' | 'PUBLISHED' | 'ARCHIVED'`) are translated directly into standard GraphQL `enum` blocks, whereas complex union types are mapped to GraphQL `union` definitions.

TypeScript Interface to GraphQL SDL Schema Converter

TypeScript Interfaces & Types Input

/** Order lifecycle state machine */
OrderStatus {
  PENDING = 'PENDING',
  PROCESSING = 'PROCESSING',
  SHIPPED = 'SHIPPED',
  DELIVERED = 'DELIVERED',
  CANCELLED = 'CANCELLED'
}

/** Supported payment processors */
PaymentMethod = 'CREDIT_CARD' | 'PAYPAL' | 'APPLE_PAY' | 'STRIPE';

/** Currency amount representation */
Money {
  amount: number;
  currency: string;
}

/** Physical shipping destination */
ShippingAddress {
  street: string;
  city: string;
  state: string;
  postalCode: string;
  country: string;
  isResidential?: boolean;
}

/** Line item within a customer order */
OrderItem {
  id: string;
  productId: string;
  productName: string;
  quantity: number;
  unitPrice: Money;
  subtotal: Money;
  metadata?: Record<string, any>;
}

/** Comprehensive customer order record */
Order {
  id: string;
  orderNumber: string;
  customerId: string;
  status: OrderStatus;
  items: OrderItem[];
  total: Money;
  shippingAddress: ShippingAddress;
  paymentMethod: PaymentMethod;
  notes?: string;
  createdAt: Date;
  updatedAt?: Date;
  /**
   * Internal tracking identifier
   * @deprecated Replaced by orderNumber in v2 API
   */
  legacyTrackingCode?: string;
}

/** Registered platform customer */
Customer {
  id: string;
  fullName: string;
  email: string;
  phone?: string;
  orders: Order[];
  defaultAddress?: ShippingAddress;
  createdAt: Date;
}

69 lines1375 chars1375 bytes

TS AST•0 symbols parsed

# No TypeScript interfaces, types, or enums detected in source.
# Paste TypeScript definitions or select a scenario preset above.

0 Types0 Inputs0 Enums0 Fields

Transformation: 1.23ms•Client In-Memory

Defined Types

0 Types & Inputs

Total Fields

0 Fields Generated

Enums & Unions

1.23ms (Pure Client AST)

Client-Side AST Parsing

All TypeScript interfaces, type aliases, and enums are parsed locally in browser memory without sending code to remote servers.

Complete GraphQL SDL Generation

Converts complex TypeScript models into standard GraphQL SDL object types, input types, enums, unions, and custom scalars.

Production Ready & Multi-Tab Export

Export comprehensive schema definitions (.graphql), separate input types, or resolver signatures with instant copy and download.

TypeScript Interface to GraphQL SDL Schema Converter

Client-Side AST Parsing

Complete GraphQL SDL Generation

Production Ready & Multi-Tab Export

TypeScript to GraphQL SDL Cheatsheet — Reference Guide

Key Parameters & Controls

Pro Tips & Best Practices

Preserve JSDoc Descriptions

Convert Enums and Union Types

Isolate Input Object Types

Automate Date Custom Scalars

Common Gotchas & Troubleshooting

Circular TypeScript interface references trigger recursive depth warnings

Advanced utility types like Omit<T, K> or Pick<T, K> fail to expand field definitions

Frequently Asked Questions

Related Tools & Utilities