JSON Validator

Validate if a string is a valid JSON.

Input0 words • 0 chars
Output

Strict JSON Validation

A missing comma or an unclosed brace can break your entire application. The JSON Validator checks your code against the JSON standard (RFC 8259) to ensure it's syntactically correct.

Common JSON Errors

  • Trailing Commas: JSON does not allow a comma after the last item in an array or object.
  • Quotes: Keys and string values must be wrapped in double quotes ("), not single quotes.
  • Types: JSON only supports strings, numbers, booleans, arrays, objects, and null.