JSON Validator

Drag and Drop JSON file here

or click to select a .json file

Or type/paste JSON below:

Size: 0 bytes

Lines: 0

Elements: 0

Note: This tool validates your JSON data according to RFC 8259 standards.

About This JSON Validator

This tool helps you validate JSON data to ensure it conforms to the official JSON specification. It checks for syntax errors, proper structure, and common mistakes.

How to Use This Validator

Step-by-Step Guide:

1. Step 1: Input your JSON using either:
   • Drag and drop a .json file
   • Click to browse and select a file
   • Type or paste directly into the text box
2. Step 2: Click "Validate JSON" to check your data
3. Step 3: Review the validation results:
   • Green message for valid JSON
   • Red message with error details for invalid JSON
4. Step 4: Use the "Format JSON" button to fix indentation

Validation Checks:

• Syntax: Proper use of quotes, commas, brackets
• Structure: Valid object and array structures
• Data Types: Valid JSON data types (string, number, object, array, boolean, null)
• Encoding: Proper character encoding

Common Errors Detected:

• Missing or extra commas
• Unquoted property names
• Trailing commas
• Invalid number formats
• Unescaped special characters