JS Beautifier
Format and beautify minified JavaScript code instantly. Add proper indentation, spacing, and line breaks to make your JS code readable and maintainable.
About JS Beautifier
Our free online JS Beautifier is a powerful tool that helps you format, clean up, and optimize your JavaScript code. Whether you're working with minified, obfuscated, or poorly formatted scripts, this tool transforms them into clean, readable, and well-structured JavaScript in seconds.
JavaScript beautification improves code readability and maintainability by adding proper indentation, consistent spacing, and logical line breaks. Clean JS is easier to debug, modify, and collaborate on, especially in team environments where multiple developers work on the same codebase.
All processing happens directly in your browser, so your JavaScript code never leaves your device. This ensures complete privacy and security for your source code.
Features
Fast & Free
Instantly format your JavaScript with no registration or limits.
Customizable Settings
Control indentation, spacing, and line breaks to match your style.
Syntax Highlighting
CodeMirror editor with JS syntax highlighting and line numbers.
Copy & Download
One-click copy or download the formatted JS as a .js file.
Privacy First
All processing happens in your browser. Your code stays private.
Auto-Beautify
Enable auto-beautify mode to format JS as you type.
Frequently Asked Questions
Is this JS Beautifier free?
Yes, completely free with no registration required. Use it as many times as you need.
Does it work offline?
Yes, once the page is loaded, all beautification happens entirely in your browser.
Is my code secure?
Absolutely. All formatting happens directly in your browser. Your code is never sent to any server.
What is the difference between beautify and minify?
Beautify adds proper indentation and spacing for readability. Minify removes all unnecessary characters to reduce file size for production.