JSON to TypeScript Generator
A JSON to TypeScript converter that turns JSON into interfaces, types, and clean TS output in seconds.
Tool workspace
IdleLocal-only. Your JSON never leaves the browser.
Auto-sanitized into a valid TypeScript identifier.
Export interface or type aliases.
Union produces better mixed-array types.
Input
Paste your JSON
Outputs are best-effort. Review before production use.
Process
How it works
Paste JSON
Paste JSON directly—nested objects and arrays are supported.
Choose output
Pick interface or type, set strict mode, and choose array inference.
Format & generate
Use the built-in JSON to TypeScript formatter for clean output.
Copy or download
Copy the result or download a .ts file for your project.
Use Cases
Common use cases
Convert API responses into TypeScript interfaces
Generate types for webhook payloads and events
Convert Swagger/OpenAPI JSON to TypeScript types
Model JSON to TypeScript array structures safely
Create reusable types for configs and schemas
Document data contracts for frontend teams
Ready to turn this into a real product? Get a detailed estimate or chat with our AI.
Fiverr Top Rated Plus
Top 1% seller
Upwork Top Rated
100% Job Success
5.0 Google Reviews
104 reviews
ISO 9001 Certified
Quality management