TypeScript Tool
JSON to TypeScript Interface Converter
Paste raw JSON responses from REST or GraphQL APIs to instantly infer and generate valid TypeScript interfaces locally in your browser.
0 characters
Why Use Automatic JSON to TypeScript Interface Generation?
**TypeScript** brings static typing to JavaScript, catching runtime bugs during compilation. When integrating third-party REST APIs or GraphQL endpoints, manually writing TypeScript interfaces for complex JSON payloads is time-consuming and prone to typos.
Recursive Sub-Interface Extraction
Nested JSON objects are automatically parsed into separate `export interface` definitions, maintaining clean modular code architecture.
100% Client-Side Privacy
Your API payload keys and sensitive backend structures are processed entirely in browser local memory without sending data over the network.