Code Beautifier

Pretty-print JSON, or indent a brace-style snippet.

Pretty-print JSON when it parses. Anything else gets a simple brace indent.

Code

{
  "name": "Nice",
  "tools": [
    1,
    2
  ]
}

Calculations happen in your browser.

Worked example

{"name":"Nice","tools":[1,2]} pretty-prints as indented JSON. A brace snippet that isn’t JSON is indented by braces instead, with each { and } on its own line.

FAQ

Does it format every language?: JSON is formatted properly when it parses. Anything else gets a simple brace indent, which suits JavaScript-like code and not Python.
Will it fix syntax errors?: No. Invalid JSON falls through to the brace indenter. It doesn’t repair missing commas or quotes.
Is the code uploaded?: No. Formatting runs in the browser.