Prepros - Compile Less, Sass, Scss, Stylus, Jade, Coffeescript, Haml and Markdown with live browser refresh.
Adobe Photoshop - Adobe Photoshop is a webtop application for editing images and photos online.
CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.
Sketch - Professional digital design for Mac.
Fire.app - Fire.app is a menu bar only app for dead easy HTML prototyping.
Adobe Illustrator - Adobe Illustrator is a vector graphics editor.