CSS Minifier
FreeMinify CSS stylesheets to reduce file size
.box{display:flex;color:#333}About CSS Minifier
Readable stylesheets are full of indentation, line breaks, and comments that help you write them but add weight to every download. The CSS Minifier removes that overhead, collapsing whitespace and stripping comments to produce the smallest equivalent stylesheet, so your styles apply exactly the same while the file gets noticeably lighter.
Paste your CSS and the tool returns a compact, production-ready version instantly. It's free, browser-based, and needs no account. Use it as a lightweight build step, to compress a stylesheet before deploying a static site, or to trim third-party CSS you're bundling, helping pages load faster and reducing the bytes users have to download without any change to how your design looks.
Common uses
- Compress a stylesheet before deploying a static site for faster page loads
- Trim whitespace and comments from CSS bundled with a small project
- Minify a third-party stylesheet you're including to reduce its footprint
- Quickly shrink CSS without setting up a full build pipeline
- Reduce the bytes served on a performance-sensitive page
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 minifying affect how my styles render?
No. It only removes whitespace and comments. Every selector, property, and value behaves identically.
Does it remove unused CSS rules?
No. It compresses the CSS you provide but does not analyze your pages to drop unused selectors.
Can I make minified CSS readable again?
Yes. Run it through the CSS Formatter to restore indentation and line breaks for editing.
Are my comments kept?
Comments are stripped to save space. Keep a source copy if you need them for documentation.
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.