How to Use JavaScript Formatter
Clean up and re-indent JavaScript with js-beautify for easy reading and debugging.
Open the JavaScript Formatter tool →What is JavaScript Formatter?
Beautify and indent minified or messy JavaScript. It's completely free, needs no sign-up, and runs entirely in your browser — so it's fast and private.
How to use JavaScript Formatter
- Open the JavaScript Formatter tool.
- Paste or type your input.
- Set any options provided.
- Copy the result. Everything runs in your browser — nothing is uploaded.
Frequently asked questions
Does it fix my code or just format it?
It reformats indentation and spacing for readability. It doesn't lint your logic or rename anything.
Can it un-minify JavaScript?
Yes — it re-indents minified or one-line JavaScript so you can read it, though original variable names can't be recovered.
Is my code private?
Yes — formatting happens in your browser.
Ready to try it?
Open JavaScript Formatter →