GDUB is a DWT GUI front end for DUB, a D language build tool.
It's designed to build source file(s) without having to edit the dub files: dub.json, dub.sdl, src/app.d, source/app.d
This tool is great for running examples and building/testing small projects - for example, the DWT Snippets!
Tested on Windows and Posix (Ubuntu). Screen shots here: https://code.dlang.org/packages/gdub