CSS Minifier / Beautifier

Beautify CSS, SCSS, or Less with Prettier (PostCSS plugin, tab width 2 or 4, print width 100). Minify plain CSS with csso (restructure on). Minify requires Syntax set to CSS — compile SCSS/Less first or use Beautify only. Load sample, copy, or download styles.css / .scss / .less — all in your browser.

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Category: Code & Developer Tools

Beautify uses Prettier in your browser. Minify uses csso and applies only when Syntax is CSS.

Beautify for CSS, SCSS, or Less. Minify for plain CSS only.
Result appears here…

Beautify vs minify CSS

Beautifying applies consistent indentation, line breaks, and wrapping so stylesheets are easier to read, diff in code review, and hand off to teammates. Minifying removes redundant whitespace and can restructure rules safely to shrink file size for faster loads. This tool combines both: Prettier for pretty-printing across CSS, SCSS, and Less syntax, and the csso engine for aggressive plain-CSS minification.

How this CSS / SCSS / Less tool works

Choose Syntax — CSS, SCSS, or Less — and tab width (2 or 4 spaces). Beautify runs Prettier’s standalone formatter with the PostCSS plugin and the matching parser, using a 100-character print width. Minify runs only when Syntax is set to plain CSS: csso minifies the pasted stylesheet with restructuring enabled for smaller output. If you need minified SCSS or Less, compile to CSS in your build pipeline first, then paste the compiled CSS here. Load sample fills a short CSS example and resets syntax to CSS. Clear removes input and output; Download saves styles.css, styles.scss, or styles.less depending on the current syntax selector.

Privacy

Prettier and csso execute entirely in your browser. Your stylesheets are not uploaded to Dynamic Duniya servers.

Frequently Asked Questions

Why does Minify say CSS only?

The minifier uses csso, which operates on standard CSS. SCSS and Less contain variables, mixins, and nesting that must be compiled to CSS before minification. Use Beautify for SCSS/Less formatting, or paste compiled CSS to minify.

What does csso “restructure” do?

Restructuring lets csso merge and simplify rules where it is safe to do so, often producing a smaller file than whitespace removal alone. Always spot-check critical cascade behavior after minifying.

Will this match my PostCSS or Sass build output?

Not byte-for-byte. Different toolchains (Autoprefixer, postcss-preset-env, dart-sass) apply their own transforms. Use this page for quick experiments and pasted snippets; rely on your project’s bundler for production parity.

Can Prettier beautify invalid SCSS or Less?

Parse errors surface as a failure message with no output. Fix syntax or reduce the snippet until it parses.

Is the CSS Minifier / Beautifier free?

Yes. No account is required.

Tips

Quick guidance for using our tools safely and effectively.

Privacy

Files are processed on the server for conversion only and are not used for training or shared with third parties.

Best results

Use the formats suggested in each tool. Large media files may take longer — keep the tab open until processing finishes.

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