A few weeks ago I mentioned Doom Builder as a WAD editing utility for Doom maps, but after much unsuccessful attempting to work on WADs, both creating my own maps and editing existing maps, as well as crashing of the utility, I went back diving for a new tool. I came up with Wad Author, which is a much stronger tool. The only problem I have had with WadAuthor so far is that is has no visible way to search for an element in the map, so I still have Doom builder installed for that (more of a cheat some days than an editor).

 

I have only edited WADs in Wad Author, but it seems like it would be easier to build new Wads in as well.