JSON Formatter & Validator

What Is a JSON Formatter?

A JSON Formatter is a free online tool that takes raw, minified, or poorly formatted JSON and instantly reformats it with proper indentation, line breaks, and syntax highlighting. It also validates your JSON syntax, helping you catch errors before they cause bugs in production. Whether you are debugging an API response, reading a config file, or preparing data for documentation, a JSON Formatter makes JSON human-readable in one click.

How to Use the JSON Formatter

1. Paste your raw or minified JSON into the input panel.
2. Click Format to beautify the JSON with 2-space indentation.
3. Use Minify to compress JSON into a single line.
4. Click Copy to copy the formatted output to your clipboard.

Features

• Validates JSON syntax and shows detailed error messages
• Beautify JSON with 2-space indentation
• Minify JSON to a single compact line
• Copy formatted output to clipboard in one click
• Runs entirely in your browser — no data sent to servers

FAQ

What is a JSON Formatter?

A JSON Formatter is a tool that takes raw or minified JSON and reformats it with proper indentation and line breaks, making it easy to read and understand.

Does JSON Formatter validate my JSON?

Yes. The formatter validates your JSON syntax before formatting. If your JSON is invalid, it will show an error message indicating what went wrong.

Is my JSON data sent to a server?

No. All processing happens entirely in your browser. Your JSON data never leaves your device.

Can I minify JSON with this tool?

Yes. Click the Minify button to compress JSON into a single line, removing all unnecessary whitespace.