Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!

CodeKit - CodeKit allows you to optimize the performance of your website by automatically and efficiently compiling a variety of popular languages.

Smaller - Make your websites load faster

Fire.app - Fire.app is a menu bar only app for dead easy HTML prototyping.

SE Ranking - All-in-One cloud-based SEO software for agencies, marketing teams and webmasters

Prepros - Compile Less, Sass, Scss, Stylus, Jade, Coffeescript, Haml and Markdown with live browser refresh.