Online JSON Validator

Or enter JSON manually below

Cleared

Enter JSON data and click "Validate" to check for errors.

Input & Output for JSON Validator

What input is accepted by this tool?

The input can be any JSON data you want to validate. This includes objects, arrays, strings, numbers, booleans, and null values. For example,

{
    "tool": {
        "title": "Online JSON Validator",
        "description": "Validate and verify JSON data",
        "pricing": "free"
    }
}

What'll be the output of this tool?

The output will be a validation status indicating whether your JSON is valid or invalid. If valid, you'll see a success message. If invalid, you'll see an error message with details about what went wrong, including the line number and the problematic code snippet.

What inputs are considered invalid?

The following inputs will produce a validation error:

  • Missing or extra commas: Trailing commas or missing commas between elements.
  • Unquoted keys: Object keys must be wrapped in double quotes, such as "name" not name.
  • Single quotes: JSON requires double quotes for strings, not single quotes.
  • Unterminated strings: Strings missing a closing quote.
  • Invalid values: Using undefined, NaN, or unquoted text instead of valid JSON values.

Can I click to locate the error in my JSON?

Yes, but this feature depends on your browser. In Chrome and Firefox, when an error is found, you'll see the exact line and column number. Clicking the "click to locate" link will jump to the error position in the editor.

In Safari and some other browsers, the error message will be displayed but without precise line and column information, so the click-to-locate feature won't be available.