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Data & text

JSON formatter

Clean up JSON with pretty-printing or minification, and get a readable error when the input is invalid.

Open JSON formatter tool Runs in your browser - files are never uploaded

How to use it

  1. Paste your JSON.
  2. Choose pretty-print or minify and set the indent.
  3. Run the tool and copy or download the result.

Frequently asked questions

Is my data sent anywhere?

No. Formatting happens entirely in your browser.

Does it validate as I type?

It validates when you run the tool and shows the exact error position when possible.

Can I minify too?

Yes, switch the mode to Minify to strip whitespace.

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Confirm metadata removal

This edits document properties only; page content, links, annotations and forms are preserved where the PDF engine supports it. Some metadata structures (for example extended XMP written by other editors) may not be fully removed. Your original file is not changed — a separate cleaned PDF is created.