オンライン開発ツール

無料オンラインJSON フォーマッター

JSON データを即座にフォーマットおよび整形します。

About Our JSON Formatter

難読化されたJSONテキストをきれいに配置します。セキュリティは保証されています。

Why Format JSON?

Minified JSON is almost impossible to read. By formatting it with proper indentation, you can easily spot errors and understand API responses much faster.

Why use this specific Formatter?

  • Client-Side Processing: Your data never leaves your computer.
  • Lightning Fast: Powered by native browser engines.
  • Dual Functionality: Easily toggle between minified outputs and formatting.
  • 100% Free: purely built for developers.

How to format JSON

  1. Paste your messy JSON string into the left-hand text area.
  2. Click the 'Format' button to instantly indent it.
  3. To reverse the process, click 'Minify'.