JSON Validator

Validate JSON syntax and structure with detailed error reporting

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JSON Utilities

Format JSON

Beautify and indent JSON for better readability

Minify JSON

Remove whitespace to reduce file size

Export JSON

Download JSON as a file

Copy JSON

Copy formatted JSON to clipboard

JSON Syntax Reference

Data Types

  • String: "text"
  • Number: 123, 45.67
  • Boolean: true, false
  • null: null
  • Object: {"key": "value"}
  • Array: [1, 2, 3]

Common Errors

  • Missing quotes around strings
  • Trailing commas
  • Single quotes instead of double
  • Unescaped special characters
  • Missing closing brackets

Best Practices

  • Use consistent indentation
  • Validate before production use
  • Keep structure simple when possible
  • Use meaningful key names
  • Avoid deep nesting