JSON to TypeScript Interface Generator

Generate TypeScript interfaces or types from a JSON sample

🔒 100% di browser🆓 Gratis selamanya⚡ Tanpa signup
Catatan: Interface tool di bawah saat ini baru tersedia dalam bahasa Inggris. Kami sedang menerjemahkan UI satu per satu. Lihat tool ini dalam bahasa Inggris →

Cara pakai

  1. 1
    Paste JSON

    Drop a sample response, config, or object literal.

  2. 2
    Name the root type

    Set the top-level type name (defaults to 'Root').

  3. 3
    Copy the TypeScript

    Get an interface (or type alias) definition for every nested object.

Tentang JSON to TypeScript Interface Generator

Free online JSON to TypeScript converter. Paste a JSON sample to generate clean TypeScript interfaces or type aliases, with automatic nested-type extraction and array union inference. Runs entirely in your browser. JSON to TypeScript Interface Generator di 712 Tools jalan sepenuhnya di browser kamu pakai JavaScript API native - tidak ada server yang pernah melihat data kamu. Artinya hasil instan, privasi penuh, dan tanpa batas upload.

Buat sesi debug, quick sanity check, atau incident produksi - tool ini gratis dipakai sebanyak yang kamu butuh. Tanpa watermark, tanpa signup, dan tanpa ads di dalam tool.

Pertanyaan yang sering ditanyakan

How are arrays typed?

Element types are inferred and merged: a mixed [1, 'a'] becomes Array<number | string>.

Interface vs type?

Interfaces are extensible via declaration merging; types are more flexible with unions and mapped types. Toggle in the UI to switch.

What about optional fields?

Only the fields present in your sample are emitted. Merge multiple samples with a union type if some fields are conditionally present.

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