Beautify compressed JavaScript with basic indentation. Paste minified scripts and restore readable structure for debugging.
Output will appear here.
Frequently Asked Questions
What does the JavaScript Beautifier do?
It adds line breaks and indentation for readability — all processing runs in your browser.
Is this a full compiler?
No. It performs safe whitespace and comment processing. Complex syntax may need a dedicated build tool.
Will my code break?
Minification removes comments and spaces only. Always test output in your project before production use.
Need to minify instead?
Use the CSS or JavaScript Minifier on draft21.
Is this tool free and does it work on mobile?
Yes on both counts. The JavaScript Beautifier on draft21 is completely free with no sign-up required and works on all devices.