🧩 JSON Formatter

Paste messy or minified JSON and get it beautifully formatted — or minify it for production. Invalid JSON shows the exact error so you can fix it fast.

JSON input

Formatted output

How to use the JSON Formatter

Paste JSON into the input box.
Click Format, Minify or Validate.
Copy the result — errors are explained if the JSON is invalid.

🔒 Privacy first: this tool runs entirely in your browser. Your files and text are never uploaded to any server.

Frequently asked questions

Is it safe to paste API responses or config files here?

Yes — everything runs locally in your browser. Nothing you paste is sent to any server, logged or stored.

What's the difference between formatting and minifying?

Formatting adds indentation and line breaks so humans can read the JSON. Minifying removes all whitespace to make the smallest possible file for production use.