Free Online JSON Formatter & Validator
Format, minify, and validate JSON online. Free JSON formatter and validator tool with syntax highlighting and error detection.
How to Use This JSON Formatter & Validator
- Format JSON: Beautifies your JSON with proper indentation and line breaks
- Minify JSON: Removes all whitespace to create compact JSON
- Validate JSON: Checks if your JSON is syntactically correct
- Copy to Clipboard: Easily copy formatted or minified JSON
- Load Example: See a sample JSON structure to get started
Frequently Asked Questions
What is JSON formatting?
JSON formatting (also called "prettifying" or "beautifying") adds proper indentation and line breaks to make JSON more readable. This is especially useful when working with minified JSON or debugging JSON structures.
What does minify JSON mean?
Minifying JSON removes all unnecessary whitespace, line breaks, and indentation to create the smallest possible JSON file. This is useful for reducing file size in production environments.
How do I validate JSON?
Click the "Validate JSON" button to check if your JSON is syntactically correct. The tool will show an error message if there are any issues, such as missing commas, brackets, or quotes.
Is my JSON data secure?
Yes! All processing happens entirely in your browser. Your JSON data never leaves your device and is not sent to any server.
Can I format large JSON files?
Yes, this tool can handle large JSON files. However, very large files (over 10MB) may take longer to process. For best performance, consider processing smaller chunks.