Free Tool · Developer

JSON Formatter

Paste JSON, get it formatted and validated instantly. All processing happens in your browser.

Input

Formatted Output

Your data never leaves your browser. JSON is processed entirely client-side.

How It Works

100% client-side — no data ever leaves your browser.

Paste your JSON

Drop in raw, minified, or broken JSON from any source — API response, config file, or clipboard.

Validate & format

JSON.parse() validates the structure. If valid, JSON.stringify(data, null, indent) applies clean indentation.

Copy the result

One-click copy formatted JSON to your clipboard. Minify mode also available for compact output.

Example

Input (minified)

{"name":"Queldrex","tools":25,"live":true,"pricing":{"monthly":29}}

Output (2-space indent)

{
  "name": "Queldrex",
  "tools": 25,
  "live": true,
  "pricing": {
    "monthly": 29
  }
}