JSON Formatter & Validator

Format, validate, and minify JSON online for free. This tool pretty-prints JSON with customizable indentation and provides syntax highlighting for easy reading. It also detects and pinpoints errors in invalid JSON, showing the exact line and position where the problem occurs.

Formatted JSON will appear here

How to Use This Tool

  1. Paste or type your JSON into the input area on the left.
  2. Select your preferred indentation (2 spaces, 4 spaces, or tab) and click Format to pretty-print, or Minify to compress.
  3. If the JSON is invalid, an error message will appear showing the exact line and column of the issue.
  4. Use the Copy button to copy the formatted output to your clipboard. Press Ctrl/Cmd+Enter as a shortcut to format.

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