UndeadMurky

Official photoshop file of the vanilla WoW logo dated 2004-05-01, it was contained in the 2005 E3 Press Kit. 
Make sure to click off the layer "-M on gold", that layer seems to be unfinished and never actually used on the released logo
Credits to Daribon in the wow alpha discord for sharing it.

Generates a WDT for your WMO only maps from the WMO file.
What is it for ?
Some WoW maps (usualy dungeons) are "WMO only", they don't have any map tiles (.adt), and instead only render a WMO model referenced in the .wdt file. This tool allows to create a WDT file and properly fills its data from your WMO, mostly the boundings info, and seting the flag to use WMO definition. Requirements :
Python 3 (note, if it says python not found, check "add python to path" during installation) How to use :
This is a drag and drop tool, to use, simply drop your WMO root file onto this WMO to WDT.py script. Then just drop the .wdt in your map folder defined in Map.dbc, rename your .wdt to the map's name if needed(it just uses the model name by default). It has only been tested for WOTLK and older, not guarenteed to work with recent WoW versions.
The default coordinates of the model are 0,0,0, so just do .go xyz 0 0 0 [map id]
Github repo here : https://github.com/T1ti/WMO-to-WDT

GruulMe is a WDT editor and creator, it supports editing WDT flags, MWMO infos, and the ADT array.
To fill the ADT array automatically, place your ADTs in the same folder as the WDT and press "scan dir"

"ModIt is a modified ModelViewer which allows you to edit various parts of the Model"
Original post : https://www.ownedcore.com/forums/world-of-warcraft/world-of-warcraft-model-editing/wow-me-tools-guides/275579-development-modit.html?s=ad7d386d9b5a5fb34316b3c2ec121689 (links are dead)
 
Note : I haven't really tested it and I doubt it works well for editing, but it is very useful to display model attachements and bones over a classic model viewer.

Reuploading since all links on internet are dead.
Riu's Zone masher allows to move and merge adts, maps for 3.3.5(Wotlk), might work with Vanilla/Tbc as well.
Original release post here : https://www.ownedcore.com/forums/world-of-warcraft/world-of-warcraft-model-editing/wow-me-tools-guides/301186-rius-zone-masher-alpha.html
 
If you're getting some missing DLL error, you probably need to download "Microsoft Visual C++ 2010 Service Pack 1 Redistributable"