JSON Formatter
Format JSON into a readable layout, or compact it into a single line. Also validates that it's correct.
How to Format and Validate JSON Online for Free
Paste Your JSON Code
Copy and paste the JSON you want to format or validate.
Format or Compact
Click "Format" to make it readable with indentation, or "Compact" to reduce it to a single line.
Copy the result
If the JSON is invalid, an error message is displayed indicating where the problem is.
Why use this JSON formatter?
JSON is a data format widely used in programming, but when it arrives compressed on a single line it's difficult to read. PDFDocks formats it directly in your browser, without sending your code to any server.
What happens if my JSON has an error?
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A message is displayed explaining what failed and where in the text, so you can locate and fix the problem easily.
Is my code sent to any server?
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No, especially important if your JSON contains sensitive data — all processing happens in your browser.
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