Stylizer - A productivity-focused real-time CSS editor for serious web developers. Mac OS X and Windows.
FilterGrade - Gorgeous photography filters for Photoshop
EnjoyCSS - CSS generator for rich graphical styles without coding
CSS Hat - Turn layers from Photoshop CC 2014 to code instantly.
CSSEdit - Design beautiful, innovative and fast-loading web sites… with a beautiful, innovative and fast app.
Topstyle - TopStyle contains powerful tools for building standards-compliant web sites.