JavaScript Formatter

Make unreadable JavaScript easy to follow, with consistent formatting your team will recognise.

How to use the JavaScript Formatter

  1. Add your text, file or details in the tool above.
  2. Adjust the settings to get the result you want.
  3. Copy or download your result. Nothing is uploaded.

What you can use it for

  • Read minified scripts
  • Tidy code before sharing or review
  • Standardise snippets from Stack Overflow

Private by design

The JavaScript Formatter runs entirely in your browser. Your text and files are never uploaded or stored on a server, so it is safe for work documents and personal information. It is free, with no sign-up and no limits on how often you use it.

Frequently asked questions

Does it support modern JavaScript and JSX?

Yes. ES2024 syntax and JSX are supported.

Can it un-minify variable names?

No. It restores layout, but shortened names stay short.

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