JS Formatter

Beautify or minify JavaScript source code online. Text-only formatting, no execution. Free, private, and 100% client-side.

Mode

Input

Output

Local only

Recent history

No history yet

How to use

Paste JavaScript code into the input box.
Choose Beautify or Minify mode.
Copy or download the result.

Frequently asked questions

Does this tool execute my code?: No. The tool only reformats text based on braces, semicolons, and parentheses. It never evaluates or runs your JavaScript.
Is my data uploaded anywhere?: No. All formatting happens locally in your browser with no server round-trip.

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