I definitely love and adore Avivo's CSS/JS Minifier/Beautifier. Mostly for options that similar tools lack. Like:
braces on own line,
preserve empty lines and ability to select intend character.
It has a small bug in CSS Beautifier. Every
: is beautified to
: (with space), which breaks pseudo-classes like
:hover and and pseudo-objects like
::before. But, this can be easily fixed (manually; simple find-and-replace in text editor).
So, even with this, Avivo's tool is just fabulous!