Generate JSON Schema & TypeScript Interfaces from Any JSON Payload

Q: Does this generator handle nested objects and typed arrays?

Yes. It recursively inspects child objects and array elements to emit complete nested property definitions and TypeScript sub-interfaces.

Paste a sample API response to infer required keys, nested object schemas, array item types, and ready-to-compile TypeScript interfaces.

✓ Draft 2020-12 + TypeScript Target Keyword: "json to json schema and typescript generator" (135,000/mo) Est. Ad RPM: $18 – $27

INPUT SOURCE 268 chars

{
  "eventId": "evt_99201",
  "createdAt": "2026-10-17T12:00:00Z",
  "livemode": true,
  "amountCents": 4900,
  "customer": {
    "id": "cus_8812",
    "email": "architect@acme.io",
    "verified": true
  },
  "scopes": [
    "read:metrics",
    "write:webhooks"
  ]
}

LIVE PROCESSED OUTPUT UTF-8 • CLIENT-SIDE

Processing...

Ready • 100% local execution Server Cost: $0.00 • Latency: <5ms

How to Use the JSON → Schema & TS

STEP 01

Paste any valid JSON object or array into the left input editor.
STEP 02

Select JSON Schema (Draft 2020-12) or TypeScript Interfaces in the toolbar.
STEP 03

Copy or download the inferred schema definition for your API validation or codegen pipeline.

Frequently Asked Questions (JSON → Schema & TS)

Does this generator handle nested objects and typed arrays?

Yes. It recursively inspects child objects and array elements to emit complete nested property definitions and TypeScript sub-interfaces.