ClangFormat - A tool to format C/C++/Java/JavaScript/Objective-C/Protobuf code.
Prepros - Compile Less, Sass, Scss, Stylus, Jade, Coffeescript, Haml and Markdown with live browser refresh.
Artistic Style - astyle, code formatting
Scout-App - Process Sass files into CSS without any knowledge of the command line.
Code Beautifier - Code Beautifier CSS Formatter and Optimiser - Online CSS parser and Optimiser
CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.