JSON Formatter

Formatted JSON / Result

How to Use

  1. Paste your raw JSON text into the input area on the left.
  2. Click Format to pretty-print and validate the JSON.
  3. If the JSON is valid, the formatted result will be displayed on the right in a readable, indented format.
  4. If there is a syntax error, the right panel will show an error message with basic details.
  5. Click the 📋 Copy button in the top-right of the result panel to copy the formatted JSON to your clipboard.
  6. Click Clear to clear both the input and output so you can start again.

Technical notes

This JSON formatter uses the built-in JSON.parse and JSON.stringify functions available in modern browsers. Parsing and formatting happen entirely in your browser memory. Invalid JSON will trigger a parse error, which is displayed with a clear message so you can quickly fix syntax issues.

All formatting and validation are done directly in your browser. Your JSON data is not sent to any server.