CSS Minifier / Beautifier
Minify bloated CSS or beautify minified CSS back into readable form.
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How it works
Paste your CSS code and click Minify to strip all whitespace, comments, and redundant characters — reducing file size by up to 40%. Click Beautify to expand minified CSS back into human-readable, properly indented code.
Why use this tool?
Minified CSS loads faster and improves your website's PageSpeed score. Beautifying minified CSS is essential when debugging third-party stylesheets or legacy code without source maps.
Frequently Asked Questions
How much does CSS minification reduce file size?
Typically 20–40% depending on how much whitespace and how many comments your CSS contains. A 50 KB stylesheet can become 30–35 KB after minification, reducing load time measurably.
Does minification change how the CSS works?
No. Minification only removes whitespace, comments, and redundant characters. The browser parses the minified CSS identically to the original — visual output is unchanged.
When should I use CSS minification?
Always in production. Never manually edit minified CSS — always edit the source and minify before deploying. Use a build tool (Webpack, Vite, PostCSS) to automate this in CI/CD pipelines.
Is this free?
Yes, completely free. Minify or beautify CSS instantly in your browser.
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