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JSON to TypeScript Interface & Type Generator

Processed in your browser

Convert raw JSON into clean, strongly-typed TypeScript interfaces, type aliases, nested sub-models, and union types directly in your browser.

JSON to TypeScript Generator

Convert any JSON payload or API response into modular, typed TypeScript interfaces.

Sample:

Root Name:

Format:

Add `export` Infer Optional Keys (?) Readonly Properties

JSON Payload

Valid JSON

0 characters Auto-updates in real time

TypeScript Interfaces

0 types generated P0 Browser-First Privacy

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JSON Schema & Data Pipeline

Direct In-Browser Handoff

Chain this tool with complementary private browser utilities for a complete zero-server workflow:

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How to Use the JSON to TypeScript Interface & Type Generator

Free, browser-first JSON to TypeScript Interface Generator. Instantly convert complex JSON payloads and API responses into strongly-typed TypeScript models, interfaces, and types with zero server latency and 100% client-side privacy.

Privacy & Data Processing Notice

No user data leaves your browser. Computation is executed entirely on your device. We do not store, view, or transmit your inputs over our network. Your computation remains on your personal machine.

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