JSON Formatter & Validator

Paste your JSON below to format it nicely, validate syntax, or minify it.

Output

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How It Works

Uses JavaScript's built-in JSON.parse() and JSON.stringify() to validate and format your JSON safely in the browser — no data leaves your device.

  • Format: Indents JSON with 2 spaces for readability
  • Minify: Removes all whitespace for compact output
  • Validate: Checks for syntax errors and shows error messages