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devvkit

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CSS Minifier/Beautifier

Minify and beautify CSS with comment stripping and gzip sizing.

Input: 0 BOutput: 0 B
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Minifier strips comments, collapses whitespace, removes trailing semicolons, and trims zero units. With optimization enabled it also merges duplicate selectors and collapses margin/padding/border/border-radius into shorthand (at-rules like @media pass through unchanged). Gzip size uses the browser's native CompressionStream. All processing is client-side.

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Minify and beautify CSS safely. Strips comments, collapses whitespace, trims zero units, and measures gzip size: all locally in your browser.

>[x]Features
  • -Comment stripping with string safety
  • -Whitespace collapsing and selector cleanup
  • -Zero-unit trimming (0px to 0)
  • -Beautifier with nested block indentation
  • -Gzip size estimate using CompressionStream
  • -Download minified output as .css file
>>Use Cases
  • >Shrinking stylesheets for production builds
  • >Reading unreadable minified CSS
  • >Cleaning up inline styles in templates
  • >Estimating transfer sizes after compression

Frequently Asked Questions

>What does the minifier optimize??
It strips comments, collapses whitespace, removes trailing semicolons, and converts zero units like 0px to 0.
>How is gzip size measured??
The browser's native CompressionStream compresses the output locally to estimate the transferred size.