Data & Developer

JSON Formatter & Validator

Pretty-print, validate, query (JSONPath), infer schema, and diff JSON. All client-side.

{ }

data.json.formatter

JSON Formatter

valid33 B4 lines

input.json

1
2
3
4
{
  "hello": "world",
  "items": [1, 2, 3]
}

output.formatted.json

{
  "hello": "world",
  "items": [
    1,
    2,
    3
  ]
}

minified · 33 bytes

{"hello":"world","items":[1,2,3]}

Generate a QR code from any URL or text. Download as SVG. Runs entirely in your browser.

Measure entropy in bits, estimate brute-force time, and see what's weakening your password.

Paste CSV or JSON and convert to the other. Configurable delimiter, header detection, escaping, and row count — runs entirely in your browser.