JSON Validator

How to Use:

Copy your JSON data from a file or another source.
Paste the copied JSON into the text area below.
Ensure JSON keys and string values are enclosed in double quotes (e.g., `"key": "value"`).
Click the "Validate JSON" button.
The result will appear below, indicating if the JSON is valid or providing a specific error message including line and column numbers if it's not. The faulty character will also be highlighted for your convenience.
You can also click "Beautify & Format" to automatically indent and format valid JSON, or "Minify JSON" to remove all extra whitespace.
Use the new "Convert to YAML" or "Convert to XML" buttons to transform your valid JSON into other useful data formats.

Trailing Comma: A comma after the last item in an object or array. This is a common mistake that is not allowed in JSON.
Incorrect:
`{ "name": "Alice", "age": 30, }`
Correct:
`{ "name": "Alice", "age": 30 }`
Missing Double Quotes on Keys: All keys must be strings and must be enclosed in double quotes.
Incorrect:
`{ name: "Alice" }`
Correct:
`{ "name": "Alice" }`
Single Quotes: The JSON specification requires double quotes for all string values and keys. Single quotes are not allowed.
Incorrect:
`{ 'name': 'Alice' }`
Correct:
`{ "name": "Alice" }`
Missing Commas: Items in an array or key-value pairs in an object must be separated by a comma.
Incorrect:
`{ "name": "Alice" "age": 30 }`
Correct:
`{ "name": "Alice", "age": 30 }`