Minifier tools
CSS Minifier
Paste CSS, validate output size, minify or beautify stylesheets, clear the editor, and copy optimized code.
Examples, compression stats, copy, export-style review, and reset controls run in the browser.
Size stats
Compare original size, minified size, and saved bytes before copying.
Beautify reset
Turn compressed CSS back into readable blocks for debugging.
Copy output
Copy the minified stylesheet directly into build scripts or static files.
CSS Optimization Notes
Build pipeline
For production apps, use this as a quick check and keep automated minification in your bundler.
Validate visually
After minifying unusual CSS hacks or generated code, test the final stylesheet in the target browser.
FAQ
What does CSS minification remove?
It removes comments, extra whitespace, line breaks, and redundant separators while preserving CSS meaning.
Can I format minified CSS again?
Yes. Use Beautify to reset compressed CSS into a readable multiline format for review.
Is my CSS uploaded?
No. Minify, beautify, validation, copy, and clear actions run locally in your browser.