Doogie is a Chromium-based web browser with tree-style pages. It is built using CEF and Qt. The primary goal is to make a browser that functions more like an IDE. In an era where web browsers continually remove or hide UI, Doogie aims to make it more visible and allow easier cross-contextual browsing. Read the user guide or the FAQ.
Many features are either not yet implemented or will never be implemented. See the GitHub issues. Some of the major ones are: