My Learning

Keep this for later

Sign in or create a free account to save it. You’ll return to this page afterward.

Sign inCreate an account

JavaScript Beautifier

Reformat JavaScript source for readability.

How to use this tool

Paste JavaScript and select Process input. Compare the result with your original code before using it.

Important to know

Reformat JavaScript source for readability.

The bundled formatter is legacy software; modern JavaScript syntax may need a current development formatter.

Formula and methodology

Adds indentation and line breaks using the installed JavaScript beautifier.

Frequently asked questions

Does this validate JavaScript?

No. A readable result is not proof that the script parses or runs correctly.