LTLegend Tools

JSON Formatter

Beautify or minify JSON and catch syntax errors instantly.

About this tool

Debugging an API response is painful when it arrives as one long line. Paste JSON to beautify it with two-space indentation, minify it again, or get a precise parsing error message.

How to use it

  1. 1Paste raw JSON into the input box.
  2. 2Press Beautify to indent it or Minify to compress it.
  3. 3Copy the formatted output.

Frequently asked questions

Does it validate JSON too?

Yes. Invalid JSON returns the parser's exact error message so you can locate the problem.

Is my API data safe?

Yes, parsing runs entirely in your browser and nothing is uploaded.