ShowProSoftware
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JSON Formatter

Instantly validate and pretty-print any JSON file right in your browser. Choose 2 or 4 space indentation, optionally sort keys, and preview before downloading. Your data never leaves your device.

๐Ÿ”’ Processing happens in your browser โ€” files are never uploadedFree ยท No sign-up required

How to Use

  1. 1Upload or drag a .json file.
  2. 2Choose indentation and key sorting options.
  3. 3Click Format and download the result.
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Need more power?

Upgrade to Pro for unlimited tasks, larger files, no watermarks.

Go Pro โ€” $9/month

Why use ShowPro's JSON Formatter?

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100% Private
Files never leave your browser. Zero server uploads.
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Instant Results
Processing happens locally โ€” no waiting for uploads.
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Completely Free
No account needed. Use 5 times per day, always free.

Frequently Asked Questions

Is my JSON data sent to a server?

No. All processing is done entirely in your browser.

What if my JSON is invalid?

The tool shows a clear error message with the location of the syntax error.