JSON Validator

Validate JSON syntax, format and beautify JSON data

Enter JSON to Validate

Validation Results

No JSON validated yet. Enter JSON and click "Validate JSON".

How to use this JSON Validator:

  • Paste or type your JSON into the input area
  • Click Validate JSON to check for syntax errors
  • Use Format to beautify your JSON with proper indentation
  • Use Minify to remove all unnecessary whitespace
  • View validation results and formatted output

About JSON Validation:

  • JSON (JavaScript Object Notation) is a lightweight data interchange format
  • Valid JSON must have proper syntax including:
    • Double quotes around property names and string values
    • No trailing commas in objects or arrays
    • Properly matched braces, brackets and quotes
  • Common JSON data types: string, number, object, array, boolean, null
  • Well-formatted JSON improves readability and maintainability

All processing is done in your browser - your JSON data never leaves your computer