Is JS Beautifier free to use?

Yes, JS Beautifier is completely free with no registration, subscription, or payment required. All features are available to everyone instantly.

Does JS Beautifier upload my files or data to a server?

No. JS Beautifier processes everything locally inside your browser. Your files, text, or data never leave your device, ensuring complete privacy and security.

What browsers does JS Beautifier support?

JS Beautifier works in all modern browsers including Google Chrome, Mozilla Firefox, Safari, and Microsoft Edge on both desktop and mobile devices.

How accurate is JS Beautifier?

JS Beautifier uses standard algorithms and runs directly in your browser for instant, accurate results. No server-side processing means no delays or errors from network issues.

Do I need to install anything to use JS Beautifier?

No installation is required. JS Beautifier runs entirely in your web browser — simply open the page and start using it immediately.

JS Beautifier

Format and beautify your JavaScript code to improve readability.

JS Beautifier/Uglify

More browser-based utilities in this collection

View all Web & Code Utilities tools→

CSS Easing Animation

Visually create and customize CSS easing functions for smooth animations.

CSS Formatter

Beautify and format your CSS code for better readability and consistency.

HTML Escape

Convert special characters in your text to their corresponding HTML entities.

HTML Formatter

Tidy up your messy HTML code to make it well-structured and readable.

HTML to Markdown

Convert rich HTML content into clean and simple Markdown syntax.

JS Obfuscator

Make your JavaScript code difficult to read and reverse-engineer.

JSON Formatter

Format and validate your JSON data, making it easy to read and debug.

JSON to INI

Convert JSON data structures into the simple INI configuration file format.