Minify your CSS

Online CSS Minifier/Compressor. Free! Provides an API. Simple Quick and Fast.


Support CSS Minifier by purchasing a w3tees t-shirt. This site is also run by us.

Input CSS

Minified Output

Language Examples

Click on the language of your choice:

wget Curl Node.js Python Ruby Perl PHP C#

More Languages

I'd love to add more examples in your favourite programming language, so feel free to send them my way. Email andychilton at that gmail place in the sky or tweet to me @andychilton.

API - General

To minify/compress your CSS perform a POST request to with the input parameter set to the CSS you want to minify.


To see implementations in other languages see the Language Examples pages above.


Many of our users have made plugins for various editors which are listed on the plugins page.


Lots of people are making little programs to use CSS Minifier - see the programs page.