Format, validate, and beautify JSON data. Paste your JSON to see it pretty-printed with errors highlighted.
JSON Formatter
Format, validate and minify JSON. Invalid JSON shows the error and its position.
🔒 Privacy: this tool runs entirely in your browser. Your files and text never leave your device — nothing is uploaded to any server.
How it works
Using this free json formatter is simple:
- Paste your JSON into the JSON input box.
- Click Format JSON to pretty-print it — or Minify JSON to compress it to one line.
- Read the formatted result in the Result box; if the JSON is invalid, the error and its position are shown.
- Click Copy Result to copy it to your clipboard.
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