Format JSON and generate TypeScript interface
When consuming a JSON API response, you want both readable sample data and a matching type definition. This chain first normalizes the JSON (surfacing syntax errors early), then generates a TypeScript interface you can paste into your codebase.
What it solves
Format a JSON document then infer a TypeScript interface definition in one chain.
Input → Output
JSON Formatter input → JSON to TypeScript output across 2 steps.
Runs in
2–3 minutes · fully local in your browser.
Before you start
- A valid JSON object (not array or primitive)
The pipeline
-
Format, minify, or sort JSON online. Free, private, and 100% client-side.
Params: mode=format
-
Infer TypeScript interfaces from JSON. Free, private, 100% client-side.
Runs locally in your browser. The recipe defines the pipeline only — your input never leaves this tab.
▶Run this workflow
Enter your input below and click Run. All processing happens locally in your browser — nothing is uploaded.
Pipeline progress
- JSON Formatterjson-format
- JSON to TypeScriptjson-to-ts
Sample input
{"name":"uencoder","v":1} Expected output
interface Result {
name: string;
v: number;
} This pair is executed against the real tools at build time (tests/unit/recipes.test.ts) — the expected output is verified, not illustrative.
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