JSON Beautifier

This tool is useful when you need to turn dense JSON logs or API responses into a readable structure. Even a single-line payload can be reformatted into something you can scan and compare quickly.

Everything runs in the browser, so pasted JSON is not uploaded to a server. That makes it practical for internal configs, test payloads, and short debugging sessions.

When to use it

• When minified JSON is too dense to inspect comfortably
• When you want to paste readable example JSON into docs or code reviews
• When you need to find and compare specific key paths inside a response payload

How to use the formatting options

Indentation, key sorting, and Unicode escaping can be combined for different review workflows.

• indent: choose 2 or 4 spaces for a readable layout
• sortKeys: helpful when comparing two objects with the same fields in different orders
• escapeUnicode: useful when you want stable escaped output for non-ASCII text

Common mistakes

• Copying only part of a JSON block and missing a closing } or ]
• Forgetting to escape quotes inside string values
• Comparing outputs without enabling key sorting when order differences matter
• Treating JavaScript object literal syntax as valid JSON

Example input

{"name":"zzzbbb","items":[3,1,2],"enabled":true}

Example output

{
  "name": "zzzbbb",
  "items": [
    3,
    1,
    2
  ],
  "enabled": true
}