CSS Minifier
What this does
Strips comments, whitespace and the last semicolon in each block, and shortens values where it is safe (0px → 0, #ffffff → #fff). Savings are usually 15–30%.
When to use it
- Publishing a stylesheet to production.
- Inlining critical CSS in the page head.
Good to know
Keep the readable source in your repository and minify only the deployed copy.