CSS Minifier

CSS Minifier is a tool that compresses your CSS code by stripping out everything that is not needed for the browser to interpret your styles — including whitespace, line breaks, comments, and redundant characters. The result is a single, compact stylesheet that is functionally identical to the original but significantly smaller in size.

For developers, minified CSS is essential in production environments. Smaller stylesheets mean faster downloads, quicker rendering, and better performance scores on tools like Google PageSpeed Insights and Lighthouse. Whether you are shipping a personal project or optimizing a high-traffic web application, minifying your CSS is one of the easiest wins you can get for front-end performance.

Using the tool is straightforward. Paste your raw CSS into the input field — this can be anything from a full stylesheet with thousands of rules to a small snippet of component styles. Click the Minify button and the tool will process your code, removing all comments (both block and inline), collapsing whitespace, eliminating unnecessary semicolons, and condensing the output into a single continuous string.

The output is production-ready CSS that you can copy directly into your project, embed in a <style> tag, or save as a .min.css file. The minified code retains full functionality — all selectors, properties, values, and media queries are preserved exactly as authored.

A few edge cases to keep in mind: CSS custom properties (variables) and calc() expressions are preserved without modification. If your input contains syntax errors, the output may be malformed, so it is a good idea to validate your CSS before minifying. Also note that minification is not the same as optimization — the tool reduces file size but does not rewrite or remove logically redundant rules.