Martin von WysieckiJSON Formatter
Format, validate, and beautify JSON data. Runs entirely in your browser.
How to Use
Paste or type JSON into the input field. Validation runs in real time and reports syntax errors with line and column numbers.
Format pretty-prints JSON using the selected indentation. Minify removes unnecessary whitespace. Copy saves the output to your clipboard, and Clear resets both fields.
All processing happens locally in your browser. Your data never leaves your device.