Input JSON
Result
JSON Information
How to Use the JSON Validator
Step-by-Step Guide
- 1 Paste your JSON data into the input field on the left side
- 2 Click "Validate JSON" to check for syntax errors and get instant feedback
- 3 Use "Format JSON" to automatically beautify and indent your JSON
- 4 View detailed analysis including size, lines, characters, and nesting depth
Pro Tips
- Supports all JSON data types: objects, arrays, strings, numbers, booleans, and null
- Handles nested structures up to any depth with detailed analysis
- Real-time validation as you type for immediate error detection
- Perfect for API testing, configuration files, and data validation
What is JSON Validation?
JSON (JavaScript Object Notation) validation ensures your data follows the correct syntax rules. Our free online JSON validator checks for common errors like missing commas, unmatched brackets, incorrect quotes, and invalid data types. This tool is essential for developers working with APIs, configuration files, and data exchange formats.
Common JSON errors include: Missing commas between properties, trailing commas, unescaped quotes in strings, invalid number formats, and mismatched brackets or braces. Our validator catches all these issues instantly and provides clear error messages to help you fix them quickly.