CSS Minifier

About This Tool

So, you’ve got some CSS. Maybe it’s a few lines. Maybe it’s a monster file from a legacy project that hasn’t been touched since Internet Explorer 6 was a thing. Either way, it’s probably bigger than it needs to be. That’s where a CSS minifier comes in. This tool strips out the fluff—whitespace, comments, unnecessary semicolons, redundant rules—and spits out a lean, mean version of your stylesheet. It’s not magic. It’s just compression. But it makes a difference, especially when every kilobyte counts. I’ve used a dozen of these over the years. Some are clunky. Some break your code. This one? It just works. No frills. No sign-ups. Paste your CSS, hit the button, and get a smaller file back. That’s it.

Key Features

• Fast and simple: No setup, no config. Just paste and go.
• Preserves functionality: It doesn’t rewrite your logic—just removes what’s not needed.
• Handles messy code: Works even if your CSS is poorly formatted or has extra line breaks.
• Safe minification: Avoids aggressive optimizations that could break edge cases.
• Copy or download: Get your minified code instantly, with options to copy to clipboard or save as a file.
• Works offline: Once loaded, you can use it without internet—great for quick fixes on the go.

FAQ

Will this break my website?
Not if your CSS is valid. The minifier removes only redundant characters and formatting. If your site relies on specific spacing or comments for some weird reason (looking at you, old-school hacks), double-check the output. But for 99% of cases? You’re good.

Is minified CSS harder to debug?
Yeah, a little. That’s why you don’t edit the minified version. Keep your original file for development, and only minify for production. Most build tools do this automatically now, but this tool is handy when you’re doing it manually or testing something quick.