JSON Formatter

JSON (JavaScript Object Notation) is the standard format used by APIs, configuration files and countless developer tools to represent structured data. Raw JSON — especially the kind returned by an API or squeezed into a single line to save space — is often difficult to read because it has no consistent line breaks or indentation. A JSON formatter takes that raw text, parses it to confirm it's valid, and re-prints it with consistent indentation so the structure of objects and arrays becomes immediately visible.

Paste or type your JSON into the input box, then click "Format" to pretty-print it with two-space indentation. If you only want to check whether the JSON is valid without changing its formatting, click "Validate" instead. If you need the opposite of formatting — a compact, single-line version for embedding in a URL or minimizing payload size — click "Minify." Once you have the result you want, use "Copy" to copy it to your clipboard or "Download" to save it as a `.json` file. "Clear" empties both the input and any messages so you can start fresh.

{"name":"Ada","skills":["math","logic"],"active":true}

{
  "name": "Ada",
  "skills": [
    "math",
    "logic"
  ],
  "active": true
}

A single missing comma, an extra trailing comma, or an unescaped quote can make an entire JSON document unusable — and the error messages produced by parsers are often cryptic. Validating JSON before you use it in an API request, a configuration file, or a script saves you from debugging a failure several steps downstream when the real problem was a syntax error in the data itself. This tool reports exactly which line and column the parser stopped at, so you can jump straight to the problem instead of scanning the whole document by eye.