Developer Tools
CSS Minifier
Strip comments and unnecessary whitespace from your CSS to produce a smaller, production-ready file.
🔒 Runs in your browser. Processing behavior depends on the specific tool and its documented implementation.
Ready.
About this css minifier
Smaller CSS files load faster, a real, measurable factor in page speed and Core Web Vitals. This tool compresses your CSS down to its minimum size.
How css minifier works
Comments are removed and all unnecessary whitespace is stripped, producing compact CSS that behaves identically but downloads faster.
Common uses
- Shrinking a stylesheet before deploying to production
- Speeding up page load by reducing CSS file size
- Quickly compacting CSS pasted from another source
How to use this tool
- Paste your CSS.
- Click Process.
- Copy the minified result.
What to know before using it
Performs standard whitespace and comment removal, does not restructure selectors or merge duplicate rules the way an advanced build-tool minifier might.
Privacy and browser-first processing
Your CSS is processed entirely in your browser and is never uploaded or stored.
Frequently asked questions
Does minifying CSS change how it looks?
No, the visual result is identical, only whitespace and comments (which browsers ignore anyway) are removed to reduce file size.