mtools.lol

JavaScript Formatter

Beautify JavaScript with consistent indentation using Prettier.

How it works

  1. 1Paste your JavaScript.
  2. 2Choose 2 or 4 spaces.
  3. 3Copy or download the formatted code.

Features

  • Prettier, the formatter most projects use.
  • 2 or 4 space indentation.
  • Syntax errors reported with the position.
  • Private: runs in your browser.

Frequently asked questions

Which rules does it use?

Prettier's defaults with a 100-character line width.

Does it change what the code does?

No. Only layout changes.

Is my data sent anywhere?

No. Everything runs in your browser; nothing is uploaded.