How to use the JSON Formatter?

Paste your JSON into the input area and click Format to beautify it with proper indentation, or Minify to compress it into a single line. The validator will highlight any syntax errors and show you exactly where the problem is.

Valid JSON uses double quotes for keys and string values, supports numbers, booleans (true/false), null, arrays ([]), and objects ({}). Common mistakes include trailing commas, single quotes, and unquoted keys.

All processing is done locally in your browser. Large JSON files are supported and no data is sent to any server.