JSON Formatter
Format, beautify, minify, and validate JSON data. Free online JSON formatter and validator.
Frequently Asked Questions
What is JSON formatting?
JSON formatting (beautification) adds proper indentation and line breaks to compact JSON data, making it easier to read and debug. Our formatter also validates your JSON and shows helpful error messages if there are syntax issues.
What is JSON minification?
JSON minification removes all unnecessary whitespace (spaces, tabs, newlines) from JSON data, reducing its file size. This is useful for production deployments where smaller file sizes improve load times.
How do I validate JSON?
Paste your JSON into the input field and click "Validate." If your JSON is valid, you'll see a green "Valid JSON" message. If there are errors, the tool will show the error type and approximate location to help you fix it.
What are common JSON errors?
Common JSON errors include: missing quotes around keys, trailing commas after the last element, using single quotes instead of double quotes, unescaped special characters in strings, and mismatched brackets or braces.
Is this tool free and private?
Yes, completely free with no sign-up required. All formatting, minification, and validation happens in your browser. Your JSON data never leaves your device.