Developer Tools

CSS Minifier for Whitespace and Comment Cleanup

Minify CSS locally by removing extra whitespace and comments. Useful for quick size cleanup of static snippets before release.

CSSMinifier

Favorite this tool

No favorite storage mode has been selected.

Quick actions

Copy this tool URL or open the system share sheet on a supported device.

Use cases

  • Minify hand-written CSS snippets
  • Reduce third-party style size
  • Compare character counts before and after

How to use

  1. Paste CSS source
  2. Run minify
  3. Copy the compact result

Example input and output

CSS

.foo { color: red; }

Minified

.foo{color:red}

FAQ

Does it rewrite colors or shorthand properties?

It performs light minification: mainly whitespace and comment removal, without rewriting selector or property meaning.

Can it replace a full build-tool minifier?

It is for quick snippet work. Use your project build pipeline for tree-shaking, advanced optimization, or source maps.

Tools

Related tools

Continue with another translated tool for a nearby task.

HTML Minifier

HTML Minifier for Extra Whitespace Cleanup

Available

Minify HTML fragments locally by removing extra whitespace and line breaks. Useful for template cleanup and size comparison without uploading markup.

HTML Minifier

JSON Minifier

JSON Minifier Online

Available

Minify formatted JSON into a compact single line in your browser. Syntax is checked before output—useful for smaller configs, API payloads, and local storage.

JSON Minifier

SQL Minifier

SQL Minifier for Whitespace and Comments

Available

Minify multi-line SQL into a compact single line locally in your browser, with an option to strip comments. Useful for log embedding, payload size checks, and transport.

SQL Minifier