DeuTex is a WAD composing utility initially released in 1994. It uses a command line interface rather than a graphical interface, in order to ease WAD composing using scripts. As of 2017, development has been revived and it slowly gains more modern features, such as PNG support, while at the same time, getting rid of old bugs and limitations. As of July 2017, DeuTex 5.0.0 is the latest version available.
An graphical user interface version, named WinTex, is available but it is outdated and not likely to to be updated.