JSON Formatter
LiveFormattersFormat, validate and minify JSON — live as you type. All processing happens in your browser.
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About JSON Formatter
Paste any JSON and the formatter instantly pretty-prints it with consistent indentation, validates the structure, and reports the exact location of syntax errors. It can also minify JSON to the smallest possible size for transmission or storage. Everything runs in your browser, so API keys and payloads never leave your machine.
Common uses
- Pretty-print minified API responses for easier debugging
- Validate webhook payloads before sending them on
- Minify JSON to reduce file size in configs and fixtures