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Free CSS Minifier — Minify CSS Code Online
Minify or beautify CSS code with one click.
About CSS Minifier
Paste CSS and instantly minify it (removes comments, whitespace, and unnecessary semicolons for production) or beautify it (adds proper indentation and line breaks for readability). Shows the size reduction percentage so you can see exactly how much bandwidth you're saving. A quick, no-setup alternative to build tools like PostCSS or cssnano for one-off CSS optimization tasks.
How to Use CSS Minifier
- 1Paste your CSS in the input panel
- 2Click Minify to strip whitespace, comments, and unnecessary characters
- 3See the original vs. minified size comparison
- 4Copy the minified CSS for deployment or save as a .min.css file
When to Use CSS Minifier
- ▸Minifying CSS files for production deployment
- ▸Reducing stylesheet size for faster page loads
- ▸Removing comments and whitespace from generated CSS
- ▸Preparing CSS for CDN delivery and caching
Frequently Asked Questions
- How much smaller does minification make CSS?
- Typical reduction is 20-40% depending on how much whitespace and comments exist in the original. Heavily commented, well-formatted CSS benefits the most from minification.
- Does minification affect CSS functionality?
- No — minification only removes whitespace and comments that the browser ignores. Your styles work exactly the same. The only downside is that minified CSS is harder for humans to read.
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