Haml/Slim/ERB/Markdown formats are supported as the content templating engine. Layouts, partials, and helpers can all be written in different format that fits the best for faster design.
Changes in your project are monitored and instantly trigger browsers to refresh the page automatically. It works for Chrome/Firefox/Opera/Safari as well as mobile browsers on iOS and Android devices.
Fire.app works on Mac, Linux, and Windows platform. The installation process is as easy as clicking and dragging.