CSS Minifier & Beautifier

What minification does

It removes everything the browser ignores: comments, line breaks, indentation, spaces around { } : ;, and the final semicolon in each block. Nothing about how your styles behave changes — only the bytes shipped. Typical stylesheets shrink 20–40%.

Frequently asked questions

Is minified CSS safe to deploy?

Yes — this tool only removes whitespace and comments, transforms with zero risk of changing behavior. (Aggressive optimizers that rewrite colors and merge rules can occasionally change specificity edge cases; this one doesn't try.)

Should I minify by hand or in a build step?

If you have a build pipeline, let it minify. This tool is for everything else: quick edits to a live site, inspecting someone's minified stylesheet, or one-off pages without tooling.