JSON to TypeScript Converter
Compile raw JSON configurations and schemas into strict, strongly-typed TypeScript interfaces.
100% Client-Side (No data leaves your device)
Input JSON Workspace
0 chars
1
TypeScript Interface Declarations
1
TypeScript definitions will appear here...
User Guide: Auto-Generating TypeScript Types from JSON
What is JSON to TypeScript Conversion?
TypeScript provides strict static typing for JavaScript. When consuming database queries or third-party web service payloads, declaring matching interfaces enforces data contracts at compile-time. This generator scans your JSON inputs and creates compliant TypeScript structures client-side.
Step-by-Step Instructions
- Enter JSON: Paste your structured response list or object map inside the input pane.
- Adjust Settings: Set the Root Type identifier name, select whether to include the
exportkeyword, and set optional properties behavior. - Export Interfaces: Copy the code or download as a `.ts` file tab.
Recursive Object Nesting
Simple tools build flat key-value definitions. Our converter maps sub-elements recursively. If a key contains a nested object, it extracts it as a distinct interface definition, reference-assigns it to the parent property, and handles mixed array unions dynamically.