JSON to TypeScript Converter
// Generate TypeScript interfaces from JSON
#About JSON to TypeScript Converter
Free online JSON to TypeScript converter. Automatically generate TypeScript interfaces and types from JSON data. This tool runs entirely in your browser — your data is never sent to a server. Just paste your input, get instant results, and copy with one click. No sign-up or installation required.
#FAQ
How do I generate TypeScript types from a JSON API response? ▾
Paste the JSON response into the input field and the tool will analyze the structure and data types to generate matching TypeScript interfaces. Nested objects become separate named interfaces with proper references.
Does the converter handle arrays and optional fields? ▾
Yes, the tool infers array element types and generates typed arrays (e.g., string[] or MyInterface[]). Fields that appear as null in the JSON are marked as optional with the ? modifier in the generated interface.
</> Embed this tool ▾
Copy this code to embed the tool on your website. Adjust the height to fit your layout.
<iframe src="https://www.browserutils.dev/embed/json-to-typescript" width="100%" height="500" frameborder="0" title="JSON to TypeScript Converter"></iframe>