1
Step 1
Open the [CSS Minifier](/tools/css-minifier).
Guide
How to Minify CSS (Reduce File Size)
Minify CSS by removing whitespace and comments to improve load times. Step-by-step using CodeStorms Tools.
Introduction
Introduction
Minifying CSS reduces download size so pages render faster.
Step-by-step guide
2
Step 2
Paste your CSS (or a minified snippet to verify output).
3
Step 3
Click **Minify CSS** and copy the result.
Benefits
- ✓ Smaller CSS payload
- ✓ Faster rendering
- ✓ Better performance scores
Best practices
- • Keep source CSS formatted for development.
- • Minify only for production builds.
More details
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Continue this workflow
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Ready to run this workflow?
Upload your file and apply these settings in under a minute.
FAQ
Does CSS minification change behavior? ▼
Minification should only remove whitespace/comments. Your CSS rules remain the same.
Can I minify large stylesheets? ▼
Yes. Very large files may be limited by your browser memory, but most stylesheets work fine.