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Convert JSON objects to TypeScript interfaces and types instantly
Pro includes interface vs type selection, optional properties detection, and import statement generation.
The converter analyzes your JSON structure and generates corresponding TypeScript interfaces or type aliases. It detects string, number, boolean, null types and handles nested objects and arrays automatically.
Yes. Nested objects are converted to inline type definitions. Arrays of objects are analyzed to find the common shape across all items.
Yes. Toggle between 'interface' and 'type' output modes. Interfaces are better for extensibility (can be extended/implemented), while types are more flexible for unions and intersections.
JSON to TypeScript Converter is part of BriskTool's collection of free online tools. All processing runs entirely in your browser for maximum privacy and speed.