JSON Validator

Validate your JSON with detailed error reporting

JSON Validator & Formatter

Common JSON Validation Rules

  • • Objects must have key-value pairs enclosed in curly braces
  • • Arrays must be enclosed in square brackets []
  • • Strings must be enclosed in double quotes ("")
  • • Numbers can be integers or floating-point
  • • Boolean values must be true or false
  • • Null is a valid value
  • • Commas must separate elements in arrays and objects
  • • No trailing commas allowed

JSON Validator Online Tool

The JSON Validator is a powerful and reliable tool that allows you to check the validity of your JSON data in real time. Whether you're dealing with raw JSON, structured API responses, or complex schemas, this online JSON validator helps you detect errors, format content, and ensure your JSON is both syntactically and structurally correct.

🚀 Why Use a JSON Validator?

  • Detect syntax errors in JSON instantly
  • Validate JSON schemas and structure
  • Format and beautify JSON for better readability
  • 100% free and browser-based

🔍 Key Features of JSON Validator Online

  • ✅ Online JSON Validator with instant feedback
  • ✅ JSON Formatter and Validator combo
  • ✅ Supports JSON Schema Validator features
  • ✅ JSON LD Validator for structured data
  • ✅ JSON Path Validator support for testing expressions
  • ✅ Works as a JSON validator and corrector

💼 Use Cases

  • API development and debugging
  • Web and mobile app development
  • Structured data markup validation (e.g., JSON-LD)
  • Configuration file checks
  • Integration testing

🧠 Benefits of Using a JSON Validator

Using a JSON validator online saves time and prevents bugs caused by malformed data. Whether you're validating a JSON file, checking nested objects, or cleaning up minified code, our json formatter and validator ensures your data is clean and correct. It's the best JSON validator and formatter online, trusted by developers, testers, and data engineers.

📌 Highlights

  • Fast and accurate error detection
  • No installation required
  • Validates large and nested JSON files
  • Improves productivity for developers
  • Works with any browser