Runs locally
TOOL 09CODE

JSON Formatter

Beautify or minify your JSON data instantly.

Processed on your device · No uploads
JSON Input
Format / Minify
Indent
Result

How to Format JSON

  1. Paste your JSON data into the input area on the left.
  2. Choose indentation (2 spaces, 4 spaces, or tab) and format or minify mode.
  3. View the formatted result on the right and click Copy to copy to clipboard.

Frequently Asked Questions

What happens if my JSON is invalid?
An error message will appear showing exactly where the syntax error occurred.
What is JSON minification?
Minification removes all unnecessary whitespace and line breaks, compressing JSON into a single line. Useful for reducing file size or API payloads.
Is my data sent to a server?
No. All processing happens locally in your browser — your data never leaves your device.