Validate JSON syntax, format with custom indentation, and minify in one place.
The validator checks syntax instantly using your browser's JSON parser. Use Format Input to normalize spacing, Minify Input to remove whitespace, and Copy Formatted when you need readable output for docs or debugging.
Yes. It checks JSON syntax and shows an error message when parsing fails.
Yes. You can format JSON with indentation or minify it to a compact string.
No. Parsing and formatting happen locally in your browser.
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Test regular expressions with live matches and flag controls.