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JSON 格式化

格式化 JSON

在浏览器中运行 · 无需上传

此工具及本页说明目前仍为英文。功能完全相同：一切都在你的浏览器中运行。

  • 任何内容都不会离开你的设备
  • 服务器不限制文件大小
  • 无需注册，无水印
  • 免费

How to format JSON

  1. Paste your JSON.
  2. Choose 2 spaces, 4 spaces or tabs, and press Format JSON, or press Minify.
  3. Copy the result or save it as a .json file.

Good to know

  • If the JSON is invalid, the exact line and column of the problem are shown.
  • Keys keep their order unless you turn on Sort keys alphabetically. One exception: keys that are whole numbers, such as "1" or "42", move to the front in number order, because that is how browsers store JSON objects.
  • Very large numbers (beyond JavaScript's safe integer range) can lose precision when formatted; the tool warns you when your JSON contains them.

Is my JSON sent anywhere?

No. Formatting happens in your browser, so it is safe for configuration files and API responses that contain private data.

常见问题

What is the difference between formatting and minifying?

Formatting adds line breaks and indentation for reading. Minifying removes all unnecessary spaces to make the file as small as possible.

Does it fix invalid JSON?

No. It shows where the error is so you can fix it.

Is my JSON uploaded?

No. Everything runs in your browser.