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JSON Formatter

Clean up API responses and config payloads, validate the structure quickly, and minify JSON when you need a compact version.

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Result
Valid JSON

How JSON formatting works

The tool parses your input as JSON, then prints it back with two-space indentation or as a minified one-line payload.

Usage notes

  • Formatting changes whitespace only and does not change data values.
  • Minifying removes unnecessary spaces for a compact payload.
  • Validation checks whether the input is valid JSON syntax.

Frequently asked questions

Does this accept JavaScript object syntax?expand_more

No. Keys without quotes, trailing commas, and other JavaScript-only patterns are rejected. This tool validates strict JSON.

Is my data uploaded anywhere?expand_more

Formatting and validation run in the browser, so normal usage does not require sending your JSON elsewhere.

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