Free JSON Formatter & Validator

JSON formatting (beautify) adds proper indentation and line breaks to make JSON human-readable. Minifying removes all whitespace to reduce file size for production use.

The tool identifies where errors occur (line and position). For common issues like trailing commas or missing quotes, use the error message to manually fix the JSON.

JSON validation checks if your JSON follows the correct syntax. Invalid JSON cannot be parsed by applications. The validator tells you exactly what is wrong.