JSON to TypeScript Interface
Generate clean, accurate TypeScript interfaces from JSON payloads instantly.
Paste JSON Payload
TS Interface
Automate your TypeScript workflows
Defining types for external APIs is a bottleneck in TypeScript development. Instead of hand-writing interfaces for complex nested objects, our generator analyzes your JSON structure and maps it to proper TS primitives and types.
Intelligent Mapping
Our tool identifies arrays, strings, numbers, and nested objects within your JSON to provide high-fidelity interface definitions that you can drop directly into your project files.
Frequently Asked Questions
Can it handle nested objects?
Yes. Our tool recursively parses the JSON and creates inline object type definitions for nested properties.
Is any data sent to a backend?
No. The transformation logic runs entirely within your browser for total source-code privacy.