🧩 JSON Formatter
Paste messy JSON to format and validate it with proper indentation, or minify it to a single line. Runs entirely in your browser.
🔒 Runs 100% in your browser. Your data never leaves your device.
How to use
- Paste your JSON into the input box.
- Click Format to beautify and validate it, or Minify to compress it to one line.
- Copy the formatted JSON, or fix any errors that are highlighted.
FAQ
Does it validate JSON?
Yes. Invalid JSON is flagged so you can spot syntax errors instantly.
Is my JSON sent anywhere?
No. Formatting happens locally in your browser, so your data stays private.
Can it minify JSON too?
Yes — you can both beautify (pretty-print) and minify JSON.