Malilion Tools

JSON Formatter

Beautify, minify and validate JSON, sort by key and see the exact error position. Everything runs in your browser — your data never leaves your device.

Runs in your browser: input and output are never sent to the server, and the platform does not store your input.

Input

Not stored

Output

Fill in the fields on the left, then run.

How to use

  1. 1Paste or type your JSON.
  2. 2Choose beautify, minify or validate only.
  3. 3Run, then copy or download the result.

FAQ

Is my JSON uploaded to a server?

No. This is a browser-side tool: formatting happens entirely on your device and the platform never receives your JSON.

What happens when the JSON is invalid?

You get the error message and the position it occurred at, so you can find the missing comma or bracket.

Can I download the result?

Yes. The output panel offers both copy and download as a .json file.