Does my code get uploaded to a server?

No, never. This tool runs entirely in your browser using pure client-side JavaScript. You can disconnect from the internet and it will still work. No server-side logging of your code ever happens.

What languages are supported?

HTML, CSS, and JavaScript. Switch between them using the tabs above the input area. HTML is formatted with tag-level indentation, CSS by selector and property blocks, and JavaScript by statement blocks and braces.

What's the difference between Format and Minify?

Format adds proper line breaks, indentation, and spacing to make code human-readable. Minify removes all unnecessary whitespace and comments to produce the smallest possible file — ideal for production deployment.

How large can my code be?

There's no hard limit. The tool can process ~100KB of code in under a second. For very large files (hundreds of KB), consider using a dedicated build tool.

Does formatting change my code's logic?

No. The tool only adjusts whitespace — spaces, line breaks, and indentation. Your code's semantics remain identical before and after formatting. Note that minify mode will remove comments.

</> Code Formatter & Beautifier

HTML · CSS · JavaScript — Format for readability or Minify for production

🔒 Client-Side · Your Code Stays Private

📥 Input Code

Indent: Mode:

🔒 Everything runs locally: </> Code Formatter & Beautifier and other values are processed on your device, never sent to a server. Your code never leaves your machine.

📤 Formatted Output

Waiting for input...

What is Code Formatter - HTML/CSS/JS Beautifier Online?

Code Formatter - HTML/CSS/JS Beautifier Online is a free online tool that runs entirely in your browser. No download or signup needed — enter </> Code Formatter & Beautifier and other values to get results instantly. All data is processed locally.

Use Cases

Generate CSS code snippets quickly during frontend development
Experiment with different color schemes and effects while designing
Preview CSS changes in real-time while learning
Check designs on mobile without opening a code editor

Key Features

Completely Free: No registration, no limits
Privacy Safe: Data never leaves your browser
Cross-Platform: Any modern browser
Zero Dependencies: Open and use