tnswutil is a command-line utility for analyzing Doom WAD files. It is used to catch various coop issues and other peculiarities before the WADs are played in TNS, or hosted on the Ducks servers. It also proved itself helpful in catching mistakes in WADs which are still in development.
Its current status is “a personal tool made public”, so it isn't exactly polished or user-friendly or comprehensive; it should not crash though, and at least some of the nuances are documented.
To display help, download one of the archives linked in the the Download section, unpack it, and run
NOTE: tnswutil is still very much in its infancy, so the syntax, command names, and output formatting might change a lot between releases.
Requires Windows XP or newer, and the 32-bit version of Visual C++ Redistributable for Visual Studio 2015 (regardless of whether your OS is 32-bit or 64-bit).
tnswutil may run just fine in other distributions than those mentioned in the archive name. It is written in standard C++, and compiled in GCC, so it only links to libraries that should be available on every system.
Until the source code is available, you may have luck running the Windows version under Wine.
Source code will be released once heritage of this starting as a quick private project (choice of certain names, certain “architectural” choices) is eliminated.