HTML CSS JavaScript Beautifier
Paste minified or messy HTML, CSS, or JavaScript and get clean, properly indented code instantly. Free, no login, runs in your browser.
About This Tool
Make minified code readable in one click
Minified code is compact for delivery but impossible to read. This beautifier uses the js-beautify library — the same tool used by VS Code, Sublime Text, and Atom — to restore proper indentation and line breaks to HTML, CSS, and JavaScript.
Privacy guaranteed. Your code never leaves your browser. The beautifier runs entirely client-side.
HTML
Indents nested elements, adds proper line breaks between tags.
CSS
One rule per line, proper property spacing and curly brace alignment.
JavaScript
Readable indentation, proper brace and semicolon formatting.
2 or 4 Spaces
Choose your team's preferred indent size.
One-Click Copy
Copy the formatted output to clipboard instantly.
100% Private
Code stays in your browser — never sent to any server.
Quick Start
How to Beautify Code
Select Language
Click HTML, CSS, or JavaScript tab depending on your code.
Paste Code
Paste any minified, compressed, or messy code into the input.
Set Indent
Choose 2 or 4 spaces — matches your project's code style.
Beautify & Copy
Click Beautify, then Copy to get the formatted result.
FAQ
Frequently Asked Questions
What does a code beautifier do?
Rewrites minified or messy code with proper indentation, line breaks, and spacing — making it readable and maintainable.
Can I beautify minified JavaScript?
Yes. Paste any minified JS — including bundle files — and the tool adds proper indentation and line breaks, restoring readability.
2-space vs 4-space indent — which to use?
Purely style. Most modern JS/React projects use 2 spaces. Older projects and Java/PHP communities prefer 4 spaces.
Does this fix syntax errors?
No. A beautifier only adds formatting. Fix syntax errors first, then beautify.
Is my code sent to a server?
No. Runs entirely in your browser using js-beautify. Your code never leaves your device.
What library does this use?
js-beautify — open-source, the same library used by VS Code and Sublime Text for HTML/CSS/JS formatting.