CSS Minifier
FreeMinify CSS code to reduce file size and improve page load speed
.box{color:red}About CSS Minifier
Faster page loads start with smaller assets, and a readable stylesheet carries indentation, comments, and spacing that bloat every byte the browser fetches. This CSS Minifier reduces your stylesheet to its most compact form, stripping comments and collapsing whitespace so the file gets lighter while the styling stays exactly the same.
Paste your CSS and the tool returns optimized output instantly. It's free, browser-based, and requires no account. Use it to compress stylesheets before deployment, shrink CSS bundled into a static site, or trim styles for a performance-sensitive page, cutting file size to improve load speed and reduce bandwidth without altering how your design renders for users.
Common uses
- Compress a stylesheet before deployment to improve page load speed
- Reduce the file size of CSS bundled into a static site
- Trim a stylesheet for a performance-critical page
- Shrink third-party CSS you include in your build
- Optimize styles quickly without a full build toolchain
How to use
- 1
Configure options
Set your preferences using the options panel below.
- 2
Click Generate
Click the process button to generate your result instantly.
- 3
Copy or download
Copy the result to clipboard or download it directly to your device.
Why ToolHub?
- Clean readable code
- Standards-compliant formatting
- One-click beautify
FAQ
Does this change how my styles look?
No. It only removes whitespace and comments, so every rule applies exactly as before.
Why does smaller CSS help performance?
Smaller files download faster, which reduces the time the browser spends fetching and parsing your styles.
Does it drop unused rules?
No. It compresses what you provide but does not analyze your pages to remove unused selectors.
Can I reverse it?
Yes. Use the CSS Formatter to expand the minified output back into readable rules.
Can I use CSS Minifier on mobile?
Yes — ToolHub is fully responsive and works on iPhone, Android, tablets and all modern browsers. No app install needed.