Data processing

JSON Formatter & Validator

Validate, format, or minify JSON with useful parse-error context.

JSON is parsed entirely in your browser.
Valid JSON
{
  "team": "Global",
  "active": true,
  "regions": [
    "EU",
    "APAC"
  ]
}
Safe preset

Stores dates, times, numbers, checkboxes, and select choices. Text, CSV, JSON, QR content, and outputs are always excluded.

How to use it

How to use json formatter

Validate JSON and either format it for reading or minify it for compact transfer without sending the payload to a server.

Pretty-print an API payload using two-space indentation.

  1. Enter or paste the values you want to work with.
  2. Review the result and any validation message.
  3. Copy or download the result when the tool provides that action.

How it works

The browser parses the value with standard JSON rules, reports invalid syntax context, and serializes valid data with the chosen spacing.

Common uses

  • Inspect an API request or response
  • Find a JSON syntax error
  • Create a compact or readable configuration value

What the free tool includes

  • Validation
  • Format and minify