Minify CSS stylesheets to boost web page load speed or unminify compressed CSS back into human-readable code. Fast, free, and client-side tool.
CSS Code Input
Compress stylesheet file sizes or unminify compressed CSS back into human-readable code. 100% private in your browser.
What is a CSS Minifier & Unminifier?
A CSS Minifier & Unminifier is a web performance optimization tool designed to reduce Cascading Style Sheet (CSS) file sizes by stripping whitespace, comments, and redundant line breaks. Minifying stylesheets directly improves web loading speed and reduces bandwidth consumption, while
unminifying restores compressed stylesheets into readable blocks.
How to Use the CSS Minifier
Input Stylesheet: Paste raw CSS code into the full-width input box above.
Select Action: Click "Minify CSS" to compress code size, or "Unminify / Beautify" to format compressed lines.
Copy Result: Click "Copy CSS Code" to send the output directly to your clipboard.
Frequently Asked Questions (FAQ)
Does minifying CSS alter stylesheet functionality?
No. Minification removes non-essential structural characters (spaces, line breaks, and code comments) without altering CSS rules or visual styling rendering.