ctrlq.org/beautifier/

With Code Beautifier, you can deobfuscate and reformat your source code written in JavaScript, HTML, CSS, PHP or other programming languages.

www.askapache.com/online-tools/compress-css/

This tool does what it says on the tin, paste your code, set your options and get your minified output.

www.online-code.net

Online-Code.net is a individual website. I'm an ASP.NET developer, for the loading speed, I always want to decrease the page size. So I need minify the JavaScript and CSS file sometimes.I was able to find a bunch of software to do so, free ...

mabblog.com/cssoptimizer/uncompress.html

You can use this utility to uncompress your CSS files; in other words make them nicely formatted again. You can also download a Shell Script which accomplishes the same task as this online uncompress ...