How to Use

How to Use the JSON Formatter

Step 1: Paste JSON

Paste your JSON data into the input field. It can be minified, unformatted, or messy.

Step 2: Format or Validate

Click Format to pretty-print with indentation, Minify to compress, or Validate to check syntax.

Step 3: Copy and Use

Copy the formatted, minified, or validated JSON to use in your projects, APIs, or config files.

Key Features

  • Pretty print with indentation
  • Minify to single line
  • JSON syntax validation
  • Error highlighting
  • One-click copy
  • 100% free, no limits

Common Uses

  • Debugging API responses
  • Reading minified JSON files
  • Validating config files
  • Preparing JSON for documentation

FAQ

Q: Why is my JSON invalid?
A: Common issues include trailing commas, missing quotes around keys, single quotes, or comments. This tool highlights the exact error position.

Q: What indentation does it use?
A: 2-space indentation for clean, readable output.

Q: Can it handle large JSON files?
A: Yes, but very large files (>10MB) may be slow. For production, use command-line tools like jq.