Minify CSS by removing comments, unnecessary whitespace, newlines and the last semicolon in each block, producing the smallest stylesheet that still behaves identically. Smaller CSS means fewer bytes over the network and faster rendering, which matters for page speed and Core Web Vitals. This tool collapses runs of whitespace, drops spaces around braces, colons and semicolons, and strips comment blocks, while being careful not to break values that legitimately contain spaces. It reports the byte savings so the win is visible. Paste your CSS, click minify, and copy the compact result into your build or paste it inline. Everything is processed locally in your browser, so proprietary design tokens and internal styles are never uploaded to any server.