JSON to TypeScript Converter (Interfaces, Types, Classes & Zod)
Convert JSON objects, API responses, or JSON Schemas into strongly typed TypeScript interfaces, type aliases, classes, or Zod schemas online. Infer complex nested structures, array element types, and optional parameters instantly with local browser-based data processing.
How to Convert JSON to TypeScript
- Paste JSON Data: Paste raw JSON or JSON Schema into the left input window.
- Set Root Name: Specify a name for the top-level interface (e.g.,
UserResponse). - Choose Output Format: Select TypeScript Interface, TypeScript Type, Class, or Zod Schema.
- Copy Code: Click Copy Code or download the generated
.tsfile.
Key Features & Capabilities
- Nested Type Resolution: Automatically extracts sub-objects into standalone, reusable interfaces.
- Zod Schema Generation: Generates runtime validation code using
z.object()andz.infer. - JSON Schema Parsing: Supports converting standard draft JSON Schemas directly into TypeScript definitions.
- Optional Modifier Toggle: Toggle optional property flags (
?) across generated interfaces. - Private Browser Processing: Your JSON input is processed locally in your browser and isn't uploaded to TinyTools for conversion.
Related Developer Tools
Explore complementary JSON utilities in our suite:
- JSON to JSON Schema Converter – Create formal JSON Schema definitions from sample payloads.
- JSON Schema Generator – Visually design custom JSON Schemas online.
- JSON Formatter & Validator – Prettify and fix JSON syntax errors.
- JSON Compare & Diff – Compare two JSON structures side-by-side.