JSON to TypeScript
JSON to TypeScript is a free online generator that helps you infer TypeScript interfaces from any JSON payload; nested objects get their own named interface. JSON to TypeScript uses 2 input fields, returns 1 output value, and runs in your browser on the device.
Key facts
- Inputs
- 2 fields: JSON and Root interface name
- Outputs
- 1 value: TypeScript
- Runtime
- your browser on the device
- Mode
- Generator
- Privacy
- Files and text stay in the browser session.
- Cost
- $0, no account required
How to use JSON to TypeScript
- 1
Paste or fill in the input
Enter your text or values into the input fields on the page.
- 2
Run the utility
Click Compute to run the utility in your browser and review the result.
- 3
Copy the output
Copy the output value you need from the result panel.
JSON to TypeScript details
First, enter JSON in JSON to TypeScript. Next, review TypeScript. Additionally, JSON to TypeScript uses 2 input fields and 1 output block so the result is easy to scan and copy.
Paste any JSON object or array and generate matching TypeScript interfaces. Nested objects are extracted into separate named interfaces; mixed-type arrays produce a union. Useful for typing API responses without hand-writing the boilerplate. Runs entirely in your browser.
Common searches
- json to typescript
- json to ts
- json to typescript interface
- ts type generator
- typescript interface generator
- infer types from json
Related tools
Tools that work with the same formats — most users open one of these next.
JSON Schema Generator
Infer a JSON Schema (Draft-07) from any JSON document — nested objects and array element types are inferred recursively.
JSON to Go Struct
Generate Go structs with json tags from any JSON payload — nested objects become separate named types.
JSON to Python Class
Generate Python @dataclass, pydantic BaseModel or TypedDict definitions from any JSON payload.
JSON to Rust Struct
Generate Rust structs with serde derives from any JSON payload — fields auto-renamed to snake_case.
JSON to C# Class
Generate C# classes from JSON with typed properties for nested objects and arrays.
JSON to Kotlin Data Class
Generate Kotlin data classes from JSON for Android, Ktor and API clients.
Frequently asked
What is JSON to TypeScript?
JSON to TypeScript is a free online generator that helps you infer TypeScript interfaces from any JSON payload; nested objects get their own named interface. JSON to TypeScript uses 2 input fields, returns 1 output value, and runs in your browser on the device.
What inputs and outputs does JSON to TypeScript use?
JSON to TypeScript uses 2 input fields: JSON and Root interface name. JSON to TypeScript returns 1 output value: TypeScript.
Do my files and data stay private?
Yes. JSON to TypeScript runs entirely in your browser using your device's CPU. Files and text are never uploaded to our servers, so your data stays private.
How do I use JSON to TypeScript?
Open JSON to TypeScript, paste or fill in the input fields, and the result updates instantly. JSON to TypeScript runs in your browser with no upload and no waiting.
Which browsers does JSON to TypeScript support?
Any modern browser works in Chrome, Firefox, Safari, and Edge on desktop and mobile. JSON to TypeScript uses standard web APIs and does not require any plugin, extension, or sign-up.