About JSON Formatting
JSON (JavaScript Object Notation) is the most widely used data format for APIs and configuration files. Well-formatted JSON with proper indentation is easier to read, debug, and maintain. Our formatter instantly beautifies minified JSON and validates syntax, catching errors like missing commas, brackets, or quotes.
Common JSON Errors
- Trailing commas: JSON does not allow a comma after the last item in an array or object.
- Single quotes: JSON requires double quotes for strings. Single quotes are invalid.
- Unquoted keys: All object keys must be wrapped in double quotes.
- Comments: Standard JSON does not support comments. Use JSONC or JSON5 if you need comments.