JSON Formatter
Format, minify and validate JSON instantly with clear error messages pointing to the exact problem.
Errors are shown with the exact position of the problem.
How to use
Paste your JSON in the box, then click Format for pretty-printed output, Minify for compact output, or Validate to check correctness. Errors are shown with their position.
Frequently asked questions
Is this JSON formatter free?
Yes, it's completely free with no limits and no signup required.
Does my JSON get sent to a server?
No. All formatting happens locally in your browser. Your data never leaves your device.
What happens if my JSON is invalid?
You get a clear error message showing the position and type of the problem.
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