JSON Formatter

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

Input JSON

Output

JSON Tips

Valid JSON Structure:

  • • Use double quotes for strings
  • • No trailing commas
  • • Boolean: true/false
  • • Null: null (lowercase)

Common Issues:

  • • Single quotes instead of double
  • • Missing commas between items
  • • Unescaped special characters
  • • Incorrect nesting