Validate JSON syntax instantly as you type. Get immediate feedback on errors with clear messages. Perfect for catching mistakes before they cause problems in your code. Works automatically - no button clicking required.
The JSON is automatically validated as you type. Green indicates valid JSON, red indicates errors.
It validates automatically:
Invalid JSON causes errors in your applications. A validator catches these problems before they break your code. It's like spell-check for JSON - it finds syntax errors, missing quotes, trailing commas, and other issues that would cause runtime errors. Validating early saves debugging time later.
It checks if a JSON string follows correct syntax rules. The validator identifies errors like missing quotes, trailing commas, invalid characters, and structural problems.
It catches syntax errors like missing quotes around keys, trailing commas, single quotes instead of double quotes, invalid characters, and structural issues that would break your code.
Validation checks syntax, not data types. It ensures your JSON is well-formed, but doesn't verify that values match expected types. That's a separate concern for your application logic.
The tool works best with JSON up to a few megabytes. Very large files may take longer to validate, but most typical use cases work smoothly.