Offline engine (processed locally)TYPESCRIPT v1.0.0 Spec

JSON Schema to TypeScript

v1.0.0

Automatically generate accurate TypeScript interfaces and type aliases from your JSON Schema. Our online converter handles nested objects, enums, unions, and optional properties. Ideal for frontend projects, API type syncing, and keeping your types in sync with backend validation. Free, fast, and works offline in your browser.

Live sync—ms

JSONInput (JSON)Invalid

lines: 1chars: 28Size: 28 BUTF-8

TYPESCRIPTOutput (TYPESCRIPT)

Auto-generated

Converted output will appear here

lines: 0chars: 0Size: 0 BUTF-8

Size change: -100.00%TOML compliant: v1.0.0

Tool guide

Accurate conversion

Input is processed by this tool’s dedicated converter.

Local processing

Your input is processed in your browser and is not uploaded.

Ready-to-use output

Copy the result or save it as a file.