About JSON Formatter

Format and beautify your JSON data with this free online tool. Make your JSON code easy to read with proper indentation and syntax highlighting

Parse compact JSON and render its objects and arrays with consistent indentation for debugging, review, and sharing.

Key features

  • Formatting purpose Parse compact JSON and render its objects and arrays with consistent indentation for debugging, review, and sharing.
  • Supported source Paste a valid JSON object, array, string, number, boolean, or null value; property names and strings must use double quotes.
  • Style controls Select spaces or tabs and enable recursive parsing only when string values intentionally contain nested serialized JSON.
  • Formatted result The formatted tree preserves JSON values and makes nesting, keys, arrays, and syntax problems easier to locate.

How to use JSON Formatter

Follow this workflow to work with JSON documents safely and accurately.

  1. Paste or enter the source Paste a valid JSON object, array, string, number, boolean, or null value; property names and strings must use double quotes.
  2. Choose formatting rules Select spaces or tabs and enable recursive parsing only when string values intentionally contain nested serialized JSON.
  3. Format the source Run the formatter after the source parses successfully. It will apply presentation rules without intentionally changing the parsed structure.
  4. Review and copy The formatted tree preserves JSON values and makes nesting, keys, arrays, and syntax problems easier to locate.

Usage tips

  • Remove trailing commas and comments because standard JSON does not allow them.
  • Treat very large integers carefully; JavaScript-based parsers may lose precision beyond the safe integer range.
  • Do not enable recursive parsing for ordinary strings that merely resemble JSON.

Frequently asked questions

Parse compact JSON and render its objects and arrays with consistent indentation for debugging, review, and sharing.
Paste a valid JSON object, array, string, number, boolean, or null value; property names and strings must use double quotes.
Select spaces or tabs and enable recursive parsing only when string values intentionally contain nested serialized JSON.
Formatting validates syntax but not an application-specific JSON Schema, required fields, data types, or business rules.