Format, validate, and minify your JSON data.
Free online JSON Formatter and Validator. Beautify and minify your JSON data with a single click. Fix indentation, validate syntax, and make your JSON readable.
Paste your messy or minified JSON string into the input area.
Click 'Format' to beautify the code with proper indentation, or 'Minify' to remove whitespace for production use.
The tool automatically checks for syntax errors. If there's an error, it will be highlighted.
Click the copy button to save the result to your clipboard.
Common JSON errors include trailing commas, missing quotes around keys, or using single quotes instead of double quotes. Our tool highlights the line with the error.
Minify removes all unnecessary whitespace (newlines, spaces) to reduce file size. Beautify adds indentation and newlines to make the code human-readable.
Yes, all processing is done locally in your browser (client-side). Your data is never sent to our servers.
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