JSON Formatter & Validator
Format, minify and validate JSON right in your browser with clear error messages that point to the exact line and position. Handy for creators wiring up APIs, webhooks, and no-code automations — no data ever leaves your device.
How to use the JSON Formatter & Validator
Paste your JSON into the input box.
Click Format to pretty-print with your chosen indentation, or Minify to strip all whitespace.
If the JSON is invalid, the error message tells you the exact line and column to fix.
Copy the result, or keep editing — validation re-runs on every change.