TypeScript Interface Generator

A TypeScript interface generator is an online tool that automatically converts JSON objects into type-safe TypeScript interfaces. Whether you're a frontend developer consuming APIs, a backend engineer defining data models, or a full-stack developer building type-safe applications, our generator creates accurate TypeScript interfaces instantly.

This tool analyzes JSON structure, infers types, handles nested objects and arrays, and generates properly formatted TypeScript interfaces. Supports complex data structures, optional properties, union types, and type aliases.

Writing TypeScript interfaces manually from API responses or JSON data is tedious and error-prone. Development teams need accurate type definitions to leverage TypeScript's type safety, improve IDE autocomplete, and catch errors at compile time. Manual interface creation often results in incorrect types and missed properties.

Developers use this generator to quickly create type definitions from API responses, validate data structures, and ensure type safety across applications. TypeScript teams benefit from consistent interfaces that match actual data shapes and reduce runtime errors.

The tool saves hours of manual typing, ensures accurate type inference from real data, and eliminates common mistakes like incorrect optional properties. It's particularly valuable when integrating third-party APIs, defining database models, and maintaining type safety in large codebases.

API Integration: Generate TypeScript interfaces from API response data for type-safe requests.

Data Model Definition: Create type definitions for database schemas and data structures.

Frontend Development: Define props interfaces for React/Vue components from backend data.

Type Safety: Ensure compile-time type checking for JSON data across applications.

Documentation: Generate self-documenting type definitions from example data.

Using our TypeScript interface generator is straightforward: paste your JSON data into the input field, configure interface options (name, export, optional properties), and click generate. The tool instantly creates a TypeScript interface that matches your data structure. Copy the interface code with one click.

The generator follows TypeScript best practices including proper type inference, correct optional property syntax, nested interface definitions, and readonly properties when applicable. All generation is performed client-side, ensuring your data remains private and secure.