CSS/JS Minifier

Compress CSS and JavaScript inline. See compression ratio. Pure client-side.

Input size: 0 B
Output size: 0 B
Saved: 0%

About this CSS / JS Minifier

Minification removes whitespace, comments, and other non-essential characters from CSS and JavaScript to reduce transfer size. It is a standard step in front-end build pipelines.

This browser tool is handy for small snippets and demos. Large production apps should use battle-tested bundlers (esbuild, terser, cssnano) in CI.

How to use this tool

  1. Paste CSS or JavaScript.
  2. Minify and note the size savings.
  3. Copy output or integrate equivalent steps in your build.

Common use cases

FAQ

Can minification break code?

Aggressive tools can break relying on ASI edge cases or certain regexes. Test after minify.

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