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JSON Formatter

Format, validate, and beautify JSON data with syntax highlighting and error detection

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Input47 chars
Output

What is JSON Formatter?

JSON (JavaScript Object Notation) is the universal data exchange format for web APIs, configuration files, and structured data storage. The JSON Formatter lets you beautify minified JSON with proper indentation, validate syntax, and minify formatted JSON back to a compact single-line format — all in real time, directly in your browser.

Common Use Cases

  • Debug API responses by making minified JSON readable with proper indentation
  • Validate JSON configuration files for syntax errors before deployment
  • Minify JSON before embedding in HTML or storing in databases to save space
  • Quickly inspect and navigate deeply nested JSON data structures

How to Use

  1. 1Paste your JSON data into the input editor on the left panel
  2. 2Click 'Format' to beautify with proper indentation, or 'Minify' to compress the JSON into a single line
  3. 3Copy the result from the right panel — any syntax errors will be highlighted in red with a clear error message