JSON ↔ Types Generator
Bidirectional conversion between JSON and TypeScript. Generate interfaces, types, or Zod schemas from JSON — or sample JSON from existing TypeScript definitions.
JSON Input
Generated Types
How to Use the JSON ↔ Types Generator
Convert in either direction with full control over output format, naming, and structure.
Quick Start
- Choose a direction: JSON Types or Types JSON
- Paste your JSON or TypeScript code into the input editor
- Pick an output format: Interface, Type, or Zod Schema
- Click "Generate" to produce the result
- Copy the output or download as a file
Core Features
- JSON TypeScript Interface: Generate clean, nested interfaces with PascalCase names
- JSON TypeScript Type: Produce type aliases for inline composition or unions
- JSON Zod Schema: Build runtime-validated Zod schemas with inferred types
- TypeScript JSON: Generate sample JSON payloads from existing interfaces or types
- Customization: Control indentation, root name, optional fields, and exports
Common Use Cases
- API Integration: Generate types from API response samples instantly
- Schema Validation: Create Zod schemas from JSON for runtime safety
- Mock Data: Produce sample JSON from TypeScript definitions for testing
- Documentation: Generate examples for API docs and README files
- Refactoring: Convert legacy JSON configs into typed structures
FastClient-SideTypeScript-First
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