VibeGear
JSON & data

JSON → TypeScript

Generate TypeScript interfaces from a JSON sample.

Install for Chrome →All features

Tools → Convert → JSON → TypeScript · 7-day free trial · Premium $9.99 / yr

Try it now·runs locally · nothing uploaded
JSON sample
TypeScript interfaces
Want this and 50 more tools at one keyboard shortcut, with collections and persistence?Install free trial →
★ Premium

Built for the things AI can’t fake

This tool runs free, right here. The extension adds three things a web widget can’t:

Start 7-day trial→
★ Flagship

Playground

↗

JS / TS scratchpad — sandboxed and instrumented.

Paste real code, hit Run. Console + network monitor + watch expressions all in one panel.

  • ·Real ES modules · top-level await
  • ·URL imports — esm.sh & friends
  • ·Live fetch monitor (every call)
  • ·Watch expressions in your scope
  • ·10s sandbox timeout · zero CORS pain

HTTP client

↗

Postman-style request runner.

Save collections, share variables, hit any API. Includes GraphQL with introspection, OpenAPI / cURL import.

  • ·Bearer / Basic / API-key auth
  • ·GraphQL · introspection
  • ·OpenAPI 3.x · cURL import
  • ·Copy as fetch / axios / Python

Realtime (WS + SSE)

↗

Stream-protocol tester — what Postman doesn’t do well.

WebSocket + Server-Sent Events with custom auth headers, auto-reconnect, JSON pretty-print.

  • ·wss:// + ws:// + subprotocols
  • ·SSE via fetch — Authorization works
  • ·Auto-reconnect with backoff
  • ·Send composer · ⌘ + Enter

What it does

When you have a real API response and you want types you can build a client around, hand-typing them is tedious and error-prone. Paste the response, get correctly-shaped interfaces.

The generator names types from the JSON keys, dedupes structurally identical shapes, and marks fields optional when they appear inconsistently across nested arrays.

Why use VibeGear's json → typescript

How to use it

  1. 1Tools → Convert → JSON → TypeScript.
  2. 2Paste a representative JSON sample (one or a few records).
  3. 3Copy the generated interfaces and paste them into your codebase.

Example

JSON
{
  "id": 42,
  "name": "Alice",
  "tags": ["a"]
}
TypeScript
interface Root {
  id: number;
  name: string;
  tags: string[];
}

Related tools

JSON formatter & validator

Pretty-print, validate, and explore any JSON — locally, in your browser.

JSON → JSON Schema

Derive a Draft 2020-12 schema from a JSON sample.

★ Premium

One install. Every tool above.

7 days free, then VibeGear Premium is $9.99 / €9.99 per year. Everything runs locally.

Install & start trial →→